{
  "manageEntity": {
    "action": "Update",
    "entityId": "758222405",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdaf8b47e0ae0830f3dea4da80a52a223c289c69d9a89419314f2f8089fdcae95",
    "signature": "0x34b152cd4d3ddaaa92abb158cbf2fdbc485af22e5eceef498aaef03226a46850244a147653b788e665eae1847603fb8f605e104b9b2ec1f4b4f00b575ae423201c",
    "signer": "0x411178C64b26B7a9ffcc3D04ba12241Ca69b4484",
    "userId": "758222405"
  }
}