{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "693608897",
    "entityType": "User",
    "nonce": "0x04dd52c36fc4e59e5883087bf068655a7f0d709df150da30788fee3f76f320cf",
    "signature": "0x7f44a28731a020df0aeadbe8e49c8838998eb273f586b13caf903616052b91f14ebd8db81dc9bfacbd8115fbebcca44d1d09503f390aaf8d86c2f24429db78871c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}