{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "495134",
    "entityType": "User",
    "nonce": "0x6ed791e82d29bef18419874d66b0d9465f6d4e7e263b1aa0bf2ba41c634c2268",
    "signature": "0xf3aca948375cea29159190cc7ad147538c843ec6af63911d22886f58aea6633e4c5fccc0ca35a0a48bf40af81ef1c3f6f48b886266c31eb1db39f1cd7d3db9d71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}