{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "294973155",
    "entityType": "User",
    "nonce": "0x45dd75308120d09cc45a79e17f28c6030135d4e51e573dc08ed8c0e7a4969983",
    "signature": "0x9a168455841a38bb467b13118a9a66eccb0bb0e031a1489dd6cdb30cc66bf6093b9239f769cf31bf78c1980ef4b82fb1dff5221b0dff9983643da9ee031632951b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}