{
  "manageEntity": {
    "action": "Update",
    "entityId": "146529731",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraql3hkaar5nrbopdz374zuwhjkuvb575glsucqg43yugjnjcfkdva\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":557455324},{\"type\":\"playlist\",\"playlist_id\":883374544},{\"type\":\"playlist\",\"playlist_id\":1541372796},{\"type\":\"playlist\",\"playlist_id\":1571719734},{\"type\":\"playlist\",\"playlist_id\":1867373164},{\"type\":\"playlist\",\"playlist_id\":1279488986}]}}}",
    "nonce": "0x60076c03b269d41899ace2bcdbe7c1d5352845f517813e63d783a063ffbeb08c",
    "signature": "0x4bde3b410a122530553f7a34ebdd57b95cc45ab13d0357fc1ee1faf511e074fe240438499a8ec8b5b4af24421cfcdbd6cea6b9302ab8861e107fe5e14d01f9421c",
    "signer": "0x1144F554D8c6aBFae7e8fE06C7b4DD20adbB5bF1",
    "userId": "146529731"
  }
}