{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x84106f6555e88e6e4a0fe6b8dd9a097fc71ca55cf05ba69b3144110e0996ec62",
    "signature": "0x63a7b7b4def14817f0767bd8654006547878dda8b39c64b6d822e3b8b129a810405dc3d52122990bba71723a82dbff98f8d5c168cba3cc13587c4ad23d4de6c01b",
    "signer": "0xDC0E429635d75aeB6373933a78FB105Ed331D26c",
    "userId": "973551328"
  }
}