{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "162557",
    "entityType": "User",
    "nonce": "0xca688928a4fb5d8e64715d06c41d924b4e58903369021e0f1110be0d16d5b5d8",
    "signature": "0xf17a353aaf814fbf04252b2064305978c99892706fa6dd7d42735353086360ec10d403d233c798f08a1c73455f3c8a52b66975631c463cd0670b140c54a10f0c1b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}