{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148463",
    "entityType": "User",
    "nonce": "0x5e10ea45ef3b3aa2985847383c652f5990222135b42400f31a517918adc93576",
    "signature": "0x677ab88b585f71604f76c760cc5578a6fe45d919e224dd5028cce18cae0b76f31394635d5e4c5c0898e4b37cb598207139acbd7110623dba5c11f1eae06e7faa1c",
    "signer": "0x94761FA8d536C5d9aCDfcDB541DdFC8FDB0bd07a",
    "userId": "1680109"
  }
}