{
  "manageEntity": {
    "action": "Update",
    "entityId": "826685732",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3180ac1485d65ab9233c1656f0172ca0428e914492b9451db5b11666466e4bc7",
    "signature": "0xb53f612207c9c17a61566b44603e0241b85254f738aaa9124c4534694d7f877c0c2553a610620c6733930d8b8c34a83272948f3242310372b5b33edf32ed7c9d1b",
    "signer": "0x3fB3464202dCA960F65e2706E5749EaFc41e4b48",
    "userId": "826685732"
  }
}