{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0xb32a27582c683a6e160d8d3f77ee60cd37c7c49658ab7183b54531e0be77aca9",
    "signature": "0x73f41f92396986c1fa77f9ce50dd62186c487b7895e68876841af85edb981daa32d2eb350f4d727f711050fe0dcf3bff14347508d032beb4b1721e3b580160f11c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}