{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66027",
    "entityType": "User",
    "nonce": "0xb9e9de8e0c55ad4be881696f10bd9e94f1a9a2538e5cadd72c978dd33a8cff5b",
    "signature": "0xb4efecf9a5de81906ade93606d1ceee273fbc8a6bbfc03b6ffecd1000014543c4c69abded254060e6a9b1fa60699dba3758bf78266f7d32d00b4345b794d42e91c",
    "signer": "0xc925e3D5c81807Eb402BaF80F986fc737F7EfB5c",
    "userId": "230578654"
  }
}