{
  "manageEntity": {
    "action": "Update",
    "entityId": "975433030",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x3ff83286eb57b166143a4b77a242ff0a4913a37db349175f332b485e3fdcef07",
    "signature": "0x0ab9903ec64e6a17d0d8250f082dc1db771807c4bf71ef2eafd743128059746012a0e5ac11f72f22a1875b8e1560fb3d75735c1661e8972f277d936a1208ace81c",
    "signer": "0x07578093d2e69D38B0d0F770941A7CC995C1C352",
    "userId": "975433030"
  }
}