{
  "manageEntity": {
    "action": "Update",
    "entityId": "88788",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieraatfdlakfkaicr3rabw4ybtaevrmun3lckzksroh7ca2p4yrfkcaq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":22665},{\"type\":\"playlist\",\"playlist_id\":23352},{\"type\":\"playlist\",\"playlist_id\":24267},{\"type\":\"playlist\",\"playlist_id\":22664},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x508469adab7712a9c2eacdf16865803fc5cafc6b86defa16f73241459f691091",
    "signature": "0x77b0d66129f3e32efbf3a506be46bc8cc02310595bfca26886b1777d26d5247b0233babd97c390ec7f410ceb01557d5417f620e5e12d9f93837270354614aec51b",
    "signer": "0xE5DbE6Dad42e6bdCa67eCD952F5d0a1d69fFCef5",
    "userId": "88788"
  }
}