{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1508888",
    "entityType": "User",
    "nonce": "0x42bf4e232a18963b6bfec25137936dcb9f7b4dfb070644940c3a6c4578128820",
    "signature": "0x9bd984a87f21af7fd1bbc107a77c030c481c17978bc27e287b0377d7db18c2fb6852227472a262561fcd1b8f47df8b3c970be1c583c66a133f7851782d3f2b6d1b",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}