How to update complex field values

[mtvspec]

Have a nice day, everyone

I doesn't understand how to perform mutations on object field types.

For example:

type Project {
  id: ID
  manager: Manager
  name: String
 }

type Manager {
  id: ID
  firstName: String
  lastName: String
}

type Query {
  project (id: ID!): Project
}

type Mutation {
 createProject (input: NewProjectData!): Project
 updateProject (input: UpdatedProjectData!): Project
}

input NewProjectData {
  manager: Manager
  name: String!
}

input UpdatedProjectData {
  manager: Manager
  name: String
}

How can I create and update value of field Manager in this example?

[leebyron]

You might instead use the manager's id to represent it in a mutation:

input NewProjectData {
  managerID: ID
  name: String!
}