{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54549",
    "entityType": "User",
    "nonce": "0x17026aadab4678d6b9924f396cc64fc67bebd5dad214d344fcbd9f0939b08616",
    "signature": "0x76e11c9704c4eb7b6947b3f97e049efbe34688a6a7b02194b4750477b2fa25bf50de720dd82df7b8ac502e3771560d12a4cf6c4348abc6efb09d2a743f76e5ff1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}