{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x95b8561731d5a8476263c19394b986b71c4e087017246004bedf0095ce121f7a",
    "signature": "0xe6f187872281dab180ef1367f16b08ac799d50b652883c4332d7f4c41bf3bffa779323baceb56fabf89f7ae13ed70ee5da72afbb0ae8a777abb3d71d8e90050f1c",
    "signer": "0x8de9F00D30b91ba6fc08575F2d24D49d971AABf9",
    "userId": "320233590"
  }
}