{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "728155533",
    "entityType": "User",
    "nonce": "0x07ac0f55d8ec9406744fe2228ac99cb2486b64f8d9563053843e6fdbf1571b91",
    "signature": "0xebbac5e7be94aaa0d47cc77395a09f9c3880f5398899db545d9557c3c0bad51810974e6a02f811bbea9062aafb988c86850eae955143281511e29d8f65a7027d1c",
    "signer": "0x6AAB6EaEa3f7F15750b649C269b0391dcB19dEeb",
    "userId": "92019297"
  }
}