{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328199",
    "entityType": "User",
    "nonce": "0x48790018afd3683d5d033821b254ea3200b71ad26433dd93b2b63666477d23bd",
    "signature": "0x85dc36112023fa200d5d3d142f4849ce8add19d9770ebd993368aa1e9d24cad072344a3413d4713e97e19486648e7ba7dd12b96aa3f250968a6d80d986b111d71c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}