{
  "manageEntity": {
    "action": "Update",
    "entityId": "47957710",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarthpd3l2c4hpidcxwhuypab3x3n7ugen47qdfqmlz22uuobtevba\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":706800800},{\"type\":\"playlist\",\"playlist_id\":442882673}]}}}",
    "nonce": "0xdd23e4eecaa001431829bf1f625bd23880b0fba8a7d6634de8778fab7b383bd3",
    "signature": "0xea894fd84d2e5fbab5afd3041e9ccee7f8582c6c4d45daa2fb3a9a4777a6abc02a177242ae3a5f861eb632086504c73c053c400537b72cd5e30da542aaf8c9931c",
    "signer": "0x2D81e23538E92940893ef728A5b6af00F3a1e478",
    "userId": "47957710"
  }
}