{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "569803881",
    "entityType": "User",
    "nonce": "0xc610f6cffec912250b7c3a4bf6486a1674953c655abc3c2be5e64dec3c7d94da",
    "signature": "0x1dc492f67b2e51b35147114597de0cba4c0c9d69783beecb99dd07fbf6127de06357990fa068604ac5ce81df524b9c47587fcbcbdf8d6dc44359f499520bfd4e1b",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}