{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "149429484",
    "entityType": "User",
    "nonce": "0x10859df9640afffb7f45a53118a54bb0cebec198daac6d90e313601a8abf49a7",
    "signature": "0xd2e48ac4a80a04978757efff157ba35db1be4483eef48c8836655f26551d254b023fd98fa2ef7a3010e00ae02e7540f09886001330372b8c1c30ccd9092933b81b",
    "signer": "0x8e843e061C77d2F2C655e7a2c77c231b0A89eBA1",
    "userId": "10318501"
  }
}