{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "268337517",
    "entityType": "User",
    "nonce": "0xd8af8ffc64a54aacc61b52600a08a14276c059b0980f01932e584f3c91c690ca",
    "signature": "0xdacd41f66af0eeb966f3cd8bec344a4f12ab29877363c806ba5c51675f6812857ebcb3c7fc9fc9bb6355c0ae8cdc60c43577d1ecd351211ee5ba770f9c5038231c",
    "signer": "0x75387BeED3d3B040a54C3e303fF0B07Da67a9186",
    "userId": "223536026"
  }
}