{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "901788935",
    "entityType": "User",
    "nonce": "0xce8f7f9825b547b058932b8cf9bd86389c859bd9192c2290a64209c38f2b08e6",
    "signature": "0x6bd759a33642971b3e3c91c72231567792b9eb766192fbf8ab3185aff35a13e251e64591ca26b7936dffe6c686dd63516922045d27d9cca4b52db93dc9eaecf11c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}