{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0aa0fb8d847f26cb549e587afa2ad6d76531a986bd348a778825d58ea264eed3",
    "signature": "0xd474bc905d35e0daf8a243e6dd9ba8c203fedc835c5202cabc058aa2b4442c1b5ce07bb8212f25debf39d2911226a237e1e1483c20deabd8be455ef5012beb401c",
    "signer": "0xd13d0F2412aB0d0540F5a64B6854C68D6019f957",
    "userId": "792651023"
  }
}