{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "423149114",
    "entityType": "User",
    "nonce": "0xabb63add6477ced23c26f10a2293c54390624367599a57909a432915eb84fafd",
    "signature": "0xd20794895bdfc0d6158a911dda667ee71dd7a9f3f4725ab3e3dd503e976ce9ce6bb73b33ed8f2add2772189c2769a360590520d61d02389c552db8bfa3c7f8ac1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}