{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x467cb70af913afa3430965ceb4b579dbc85acc56f8a9e91c57dacb8b4c87e21e",
    "signature": "0x60256d905983aaf33ac7c35b55b7b1366ee2c4bcb64d0b2a917c671cc08c9f200e946a95bf453d9a95290df61b75eb2b1def06303e1d47b4090995ff61ef85731b",
    "signer": "0xeCfBa8420cdA4c01c47d94f247dcA6F2Db44B7b7",
    "userId": "842213503"
  }
}