{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580576096",
    "entityType": "User",
    "nonce": "0x5c971af206284f192df504ea720e243bedb0076d26e0b066c2d404e957c1d3f8",
    "signature": "0x442f4874a8fe9e9f99019b8da94acaf9fc999042ae8d0b7864593deb5e203eb95076c04c79e323a09286f0e7180f7e5711cbd556829bc963137325f1620918531c",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}