{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18103630",
    "entityType": "User",
    "nonce": "0xc633750f74d50cc3cd8a8f39f79031bd50a8a95c88cf0b62af9683784ebc4df0",
    "signature": "0x7654cabb3208b8ee0ef607be6195745fc234e218b0ee6d960f090f71cf69404d15f51b1b24a830bdeee334a4e95613fd8dcb9fbe991eedff78cf54fe8fa304da1b",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}