{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17120",
    "entityType": "User",
    "nonce": "0x16136c7579bca69f06584dd5df212564e5fd5fcacc002b89d7fead55697433a8",
    "signature": "0x04a3e061da614d3c5c0b7a908fe0fd61dc9199298cca555727bcb38e9bd1b59976c4f218dbe9e123f4cc047709f9571b7e93c71e879e302e11e7f15dda50cd141c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}