{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x511b5876ded669425dd160edee2e4fc55d084c16fb0873146db9bfa0ea89f14a",
    "signature": "0x1554d56c4cfd4346a3588d95385a4309a3f9fb3482d1132bcbd6c8f19e3b13993f3b78d13a856addda302471c6dd3f70ec6f952bd432839b25baa050f2c16a561b",
    "signer": "0xE2aef15366DDEab838F0Ba07ccE96DE014ebBAA9",
    "userId": "112617375"
  }
}