{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "517318493",
    "entityType": "User",
    "nonce": "0x281af0dbee93168ae2c25e66cd132a57bd905d5d61f6004024f3efdb0368baea",
    "signature": "0x81054815995baad92f10ea60f34b46ecfb05c41d64678e1d56cf66f80e877a7720712f510f294bf8beaaa25bcda00b52ca5113c64fad02475529ccf48b864f1a1c",
    "signer": "0x1bADBe578Fe06a36C0831E308F41CDF48B55260C",
    "userId": "394736110"
  }
}