{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951546743",
    "entityType": "User",
    "nonce": "0x21af39c75fbf0388d95962b22295876acef50841b5358dcd893ccd612a54aa63",
    "signature": "0x9a2d2a5c0a80a8790e54228c59fb3d38d4d37491c8bd325f519f74801ee95f3028cf283fa0996a9ee7955d541029712d9f65ab99920cc37bcd083db0b487f3f31b",
    "signer": "0x11cd379D12F9a2c7BAaE2f74F1914A8c50faF2c3",
    "userId": "387949683"
  }
}