{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1881059",
    "entityType": "User",
    "nonce": "0x9eda84d09366ed9c085682b643c419b4257e1513032eb8fdcbef558e3ff14816",
    "signature": "0x69d60130472a26f384523b6c61ff9b8a0253854f3ce54e8c49caecb095132f20483ff9aac756abde566619a4323359ac6b9881585cfe211bbd1725eaef7a39e51b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}