{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8cb67e90ab9899eef040031437271a23b2dbc5c5ba28321977f8f74107188a15",
    "signature": "0xe2492cf966c76297c1db736c56cd7434bde9b100d429a562181a05e37ee029bd43d17ac6f16a1c0d4c18efa67747a8a083870941fc1103290c5fa6a9e899793e1b",
    "signer": "0xF0Ec7D424448ce71cAE7087981F95e01CCfAF500",
    "userId": "893029358"
  }
}