{
  "manageEntity": {
    "action": "Update",
    "entityId": "402172867",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierahjrcv2kjsv65qlcwafjcnio44jv2ycaoomdis3isi3xrls4jz73a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1644422409},{\"type\":\"playlist\",\"playlist_id\":508864602},{\"type\":\"playlist\",\"playlist_id\":1153706514},{\"type\":\"playlist\",\"playlist_id\":1787255156}]}}}",
    "nonce": "0x6f3a0164412f2ac4e274ec788d11e8df63890e882bf3fcdb245af06c2c16f7b1",
    "signature": "0xc873d20f1a2e9a401458c32a07008d24f37302be66ad0caab5327e5e87ca295d7d51a02e586b7380b8af232e1adeadca72e30a9dffe63a0b398fb633ce95946a1b",
    "signer": "0xf7B86B7134F78bfCa140E59e3a13a697Ad29dD51",
    "userId": "402172867"
  }
}