{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203774",
    "entityType": "User",
    "nonce": "0xe9bc4d8c90871f0def3ea266c76df4117d2ba3ad23208e6c89f1d71cb1440ec2",
    "signature": "0x0f4227ef73c89623121c5fc76d061e73a3a3977365ee3b2f09a519ae4f5472c1038ae44db5a301d92f76faab08e9c8d0ce34bb1cf10a389f371a9387b78713b71c",
    "signer": "0x4731380E74b3A5C59902e5AcFcAd1fF73f7aaf09",
    "userId": "367370924"
  }
}