{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235412",
    "entityType": "User",
    "nonce": "0x3a320a45ba4d351a94775fcd8cb6b2de18fa142f740a823cc7c041e10c0ea5f7",
    "signature": "0x255a00960fbb5572fb3c0820333efa4654b632a358b652091aa0366456c3cdd2360218b27676b03fd5fcf06830a69c70eabdbbc93b7bbaa7455f6d03d50734851b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}