{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580576096",
    "entityType": "User",
    "nonce": "0xa6e8bca357379adc3f2b8539ea3db0e95341290b986a1c6ca6ec850b6fd0ee28",
    "signature": "0x70736a65389ea02f2ca9962733723d22129fc5c38c9ce6f135f6179c12b5c97a48ac67c7eb4eb944da0f07381532e9c7a50dca404e1d28f50130604d41c655cd1c",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}