{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xad5649270e9c69fc7ebfb8f1a072e210d7115f75dd79fe55f045eb6c82b66657",
    "signature": "0x17001eb8db2b0a9c043080977c589f60913bfa48e2e2a45a6b3992b890485104132488408b5206699a9ee061de309315356efd556199be6b6dafd39349faafd31b",
    "signer": "0x7262Ab09D337bd92b5e88E576379a2ABFCd9A29a",
    "userId": "30148538"
  }
}