{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "788740193",
    "entityType": "User",
    "nonce": "0xb105081eefa776302655e58323cc489c6cb51430d3aeabc3fe2a5f7745b0fe20",
    "signature": "0x4fdabbf5ca28adca955273f8fae320273d61946cf27cdf804eacec2e29b2f2521055cb14db452c86c784992cdde4101d73bfb75c085e88a54b252f40d9004ca21b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}