{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1866428",
    "entityType": "User",
    "nonce": "0xe738f068339453ac59430144cdce405ab9413cde67a1f61437fe3d2f0bb96c3b",
    "signature": "0xf2ebf39154cb743679ddfa972dcc6cb902a344a328b6809941e525ab024a15814a4323cf9241826d954f4bc67d350eeab47189af7f818c9c90e7de8858a2d4951c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}