{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "321696490",
    "entityType": "User",
    "nonce": "0x4435f893471c255325fb8d79b7c54618db42707f7e48093a0b6ec0df17184fe6",
    "signature": "0xec27b0e9e4163c31abe01f78e5bdc7485bafd4e7f61e3e667691a4ab090615e62d41f645b42d5384df3da639a1beed8fde3044f4b4727b61027fa9259dd6a5bd1b",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}