{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8062264a67bcbe878e4d97a239befc7d7f12dc5edba119a9460c01e4e7c31188",
    "signature": "0x5c4633d102acd71b434daf36da6163821794756ffa64c251e1df2c501c9d0e403afa9b3f0956c872488d431e1159583bf35632e15c5361ba31a4b2212d1be4321b",
    "signer": "0xA8DE1509973A385764C63A88649c81Eb51E6eC65",
    "userId": "269920568"
  }
}