{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x192bb7aab043a1eaed4d836df516bfe6ccad063567b18991863864466a6ecff7",
    "signature": "0x38dfb1fb98250540d0e3283892a2d3403aae0b5061e78b8ea37b89058fd52d9f5833cf8c37bb150de1a49de796a70e9a3fe5ff7ddcfaf2c7056ed522a85c45191b",
    "signer": "0x9dE7a1B9AE7494a162E2F5eD5AF6F7f1dB2A4460",
    "userId": "225203024"
  }
}