{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1831424",
    "entityType": "User",
    "nonce": "0x146ba71c54d55a7dbcaea96756e381d0055f32b307aacdb248feae6a1f18e2da",
    "signature": "0x74c1bcd89aedee40daedd5b7b5540156598ed1f6b47b3e92ca80e6deaf6128b515d3f3c28c2d9757c0f4bc484049919a91f6859e5c48449668739ebd5160be361c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}