{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "541936534",
    "entityType": "User",
    "nonce": "0x74175705afb5f38897f8fce48ad80b62d2e00596608f3dad8be13ddcf5a35b0d",
    "signature": "0x49fc2e60aaf1546798f1235c474fbf349cae3e6a79348e28aa974f730bdced61335d0553b694c817b6d472508e43be962d9e7d450618e86cce7016ddd794c3ab1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}