{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90310",
    "entityType": "User",
    "nonce": "0xd36ace3b473f2fc3bd604fb7d51d28df877da11360af6f0b4f181fba431d1d05",
    "signature": "0xf5645475bad0e9a1fe4b5c29108ad3593f6c0cf2cf2fd1ec88f3f42d8a21f48c48c9c1aba1dabfe45fc2f5b11665fd75b17a85e6a04330f79d0baa4a071177861c",
    "signer": "0x738Fb353b57EdB4d1f33c0049D33b204243db2ad",
    "userId": "693463302"
  }
}