{
  "manageEntity": {
    "action": "Update",
    "entityId": "954442177",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierapnaji2oijzbjaxeopddrltsmrelrf6ap223ttsxm7sl4te5by6wa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1949288985}]}}}",
    "nonce": "0x110da40f121ff20c35a00e041c4658c3687a7f8cd13ffd19eb3926cb4aacc6d3",
    "signature": "0x907fd083c1e9c4a430b4618677d839391a00aff163a50a4a376cacd7f21143204670598bfd1a0ad95949c993fbc3da062780ae69d8d03462cf70873ef958bfb51b",
    "signer": "0x5D9097Fa77D39311256a2A7C31aeDB9c88cA63a5",
    "userId": "954442177"
  }
}