{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159852",
    "entityType": "User",
    "nonce": "0x00538ce9430d4bce2561ffd0b3121f66e4f6939480874bdd13a76afd9d443dcf",
    "signature": "0x14a463c0f6e7c7af6992c96a63d448001de3a17eb61eaa2bcece2b2f9617a09d0fab368f4e26639b625b50035dae5fce00a5fd50281deab295530ff472969f5c1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}