{
  "manageEntity": {
    "action": "Update",
    "entityId": "239357380",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera6tmrvcgbw6ev7q5rt5lugl76yhyzow2474bwlpubr32cve7maacq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1652918232},{\"type\":\"playlist\",\"playlist_id\":518186042},{\"type\":\"playlist\",\"playlist_id\":73563997},{\"type\":\"playlist\",\"playlist_id\":2099915893}]}}}",
    "nonce": "0xef082b4d50c138febc2f3248e492a2306e2449d23ef00332e03640a24f805ec5",
    "signature": "0x12a28456147ebca0e34145de8c5d46f342d794903324c9977e4906ce2be296d93efe8515dbdb56579f70776f0edc6fc16893abba35bff8ff9f0f936e270f39f91c",
    "signer": "0x254254711908e79e218DF43AEED76fa8cd18d77B",
    "userId": "239357380"
  }
}