{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136045735",
    "entityType": "User",
    "nonce": "0xb6b5b3bdcc45ed1b04c1323c0fdd162f7725f3a71c75314cca9b985609e42b8e",
    "signature": "0xaf0cc18b39ba0fa94b2d4a104ce88d0b4643ecff78d4b53c79a309784a9330a22fbb4ecbc84954d1fca3e515506681c2094e94183a8e715436df279dee6eef4d1c",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}