{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x3d781ea895910a372faef1368a239937743e831871245f1ae4aba8140ea941cf",
    "signature": "0xaac758a2dea97fd66ddde07bddcf93c6104db07dbfb34cd007d3321ae5b0a08f51294ae5cdfb8a9d1cca0c79a25174f954ae23001766aef9327579f15ff3feff1b",
    "signer": "0x14647618553BB8A26AceAE7C85dB5b376300dA8F",
    "userId": "999002860"
  }
}