{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "698666",
    "entityType": "User",
    "nonce": "0x6f6f294a4250e2dcf6ebb1db151ea28d89f9c310794821e4d7bce32851f26cf0",
    "signature": "0xc4ffdc3d52e6dcdf6ee2e4d7584634fbc7aa0bb794bfdd796ddb7679db0782cb260254c72bb7e93839364df145deb2b842ee94a8a6a7004d430c06b5c6df0e691b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}