{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0xb21e72c409bd3af6c6cbf8ea7188236660a3ea65af06cc3cb3909af5aef20c88",
    "signature": "0x036c8331b51f0a941b797c729b027c70de0796d431da6cf4572fdf6b158f8d7c135700e0fff484c2053249b9038e37e211df74e7be823d6e0ea3b61a4d9fa1591b",
    "signer": "0x594d79756bF4fA4c6950fAA89479781792F6e656",
    "userId": "298948042"
  }
}