{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1a3fb6ed062fcfd067494b9ee54d6321a73e125c2ad3d407adda0777994cb8a",
    "signature": "0x6a113b72e285ed811295efb455689d5244cb4b357a5342940fd410dd11e2412921fd19d424d26fa74fd894a9b31d8a87d112fa4e66a5e0203acb095ddab755321c",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}