{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "423055172",
    "entityType": "User",
    "nonce": "0x8494a181bce310d9cb0f69cf844081d99dd3c5eb569b79df975ab0b6ce63e861",
    "signature": "0xfed5f2984343cfb26462c3dcd50d008757d3315f1cc762b5ee9d14f2c643b7cd42b1e1323ac6a409109659e99ec1aca71ed90e0c89840e4a824ec4ea5eb4315e1b",
    "signer": "0xAd948EEedA4AB2d06bF3150Daf2D25De733e7Cd5",
    "userId": "175201368"
  }
}