{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348572",
    "entityType": "User",
    "nonce": "0x5417046e6a65085e7a361ac7df9fcc8cc5689147a533e70c182d9c91fefbc20c",
    "signature": "0x713fe58d53937dd2ef28061fc22099731b07a278f1a2f138391a8e87c789450b4f3671f016a48f6557a86384c6fe709eff7fd330eb6e6ecb0222d2862ebb0cd41c",
    "signer": "0x7e9720d8C73bd719B01E9408E15C2884254beC2a",
    "userId": "234846549"
  }
}