{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38448",
    "entityType": "User",
    "nonce": "0xd5b089da120610cba23076c1fa72362b4c583005156f07783bd36365fbbbfea6",
    "signature": "0x338c7814b012d509c637ab09b8308e062775a30cba4a22ad3f28b91dcd3636965a357cd1d5b4c6c99a6e2f88cb020551b103b95560ff244e3c7419dc08d376301c",
    "signer": "0x4c2Adb8A805d7e9D4611767BA100c70FEbEDC530",
    "userId": "490473214"
  }
}