{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xd32575cba97fb9a6dea4e9dddba35883b5dbc80ca1ca49fb0fef47d59600d88c",
    "signature": "0x9c7a6bf84e9e740984c0b5f0a58ebb2873bc28cd181d69b7e578e3e1158f2e98671d29c9ff8e339c01716d3d1afaf9a031cdd8e25483182ffea6004cfb7ca4fc1b",
    "signer": "0x0c719578497D6a1FD2618b1BB0EA71951D9d5C1c",
    "userId": "253853465"
  }
}