{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x1fd197df572757def3f28ee33b32c5d99503653c2b40d7e26cb4f2738ed895bb",
    "signature": "0xbf3bdc64a14e093c22c63a0fb033fccf5883c9f8ccc46ec4931785f7a5c4addc2a7bf7bb0256326ac3240ddebd2b20c2930851b5ef0ae3e6766a366c5daebdb61b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}