{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120333",
    "entityType": "User",
    "nonce": "0x5e57ac04fe861eb7572d8386e2d33df2ea21faaf514d14c4ec3d7262858f3278",
    "signature": "0x46fbf4d5cadf7f5d159c8f588e0ff6ed44a2d6bec2ae3cbeeb9f38d530f5fcf27d3c357da94af57dd2e3bb4ed3cb4d77a36aa48341fa8d044e02d36d26e87e8f1b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}