{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x051fd05cca9b5d955ac68da2122bd10bc369fc62093e30a325440d8c65a901ec",
    "signature": "0xb4fdc9cffa133253ced515233acbd284bd84317dcbdaab9836a98120a05183931dc9cdc865adaefce8030f758861b6f2d7d3a08de59b2d9da7b98980a0d7f1771c",
    "signer": "0x5E915A4D9D9cb7A5693e7CFA960376B24A181Ae1",
    "userId": "864558519"
  }
}