{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "353183",
    "entityType": "User",
    "nonce": "0x6d20a31f542491e050cbff6c888593c3be57b2ee033a5b52ba145091e0f5730a",
    "signature": "0x80c54f456e4279f50c7cbdae583878f33c571d0c15ebfcb96c06e8613aa9744b527ad3b56f9f021a3be241e4c098338505c2bb698fc842f1c7e8fdf85dd34f051b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}