{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6839",
    "entityType": "User",
    "nonce": "0x8dbfe4333b0b2bda7acdd5b1691f6adfec68ca967123f5bf25c53c8a6796b851",
    "signature": "0x344105ef8da6ab1eb7e1c59822ae2f893c21cc1b2e227434e8d907c3cc96d7eb606e169300f36a871360d7b87f81cbcd11da66898f596a9c77d403d330bfe2511c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}