{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "10407",
    "entityType": "User",
    "nonce": "0x68ef8c6c92155ffd5df9c0ac399004a69da7ced6d8f7dcd11ab1b6c0c7248b83",
    "signature": "0x86c2c3299aecdd540efc452478037335e30632bb860cf48fd352e0ff739d23b257461ff06cb23eef3fa7a779a6764604f77c32e6a8f6ad5d279605f3bf3e9f061b",
    "signer": "0x0E5E64AF429524C8BFf63b8e92dC2709D672C436",
    "userId": "362390392"
  }
}