{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "495134",
    "entityType": "User",
    "nonce": "0x900bfed9b4c87ee42c6915ad4f803ee527627201328ce939458ac28486ab5bc3",
    "signature": "0x7489d52d80018f6e934ff12f1be7c0212252728886209c204c08f63704423b3f1c96f89345fb081d03545c951dd73469efd73fa7dd8fc940da4447a91991ba291c",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}