{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64375",
    "entityType": "User",
    "nonce": "0x597c052851f13e997d9e63cdebf1350869df0814a24510fa3d5e7d914b058fdb",
    "signature": "0x1959b7efef45d26e239eafe7524fad6c0b3e53589a27f2ccc5c258176f816ff740e43a24ed10094a4c6c68b97d817f0cc0e10174227e7376c57ff9a9f5d256741b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}