{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "203752",
    "entityType": "User",
    "nonce": "0xd9ad438dbe84ff1939743d3b3cdbcb0c30ac668fe978880150b8d111fd04c4f2",
    "signature": "0x2ce88fd5f365449a9ff40b43ed35da66f586bbd08f2cd81e0fcff206cd50ab872d2f73ba02cc21193e66419a77aea068d927220366a8c9b95cb9476f8f4f339f1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}