{
  "manageEntity": {
    "action": "Update",
    "entityId": "823787296",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xd27a0f19a14141b795c0c9554be04835eb8c6caccb00989c93c42eb068b1bba8",
    "signature": "0xe9f735e938a6aa146f52e4f6376a78fc5c094a95c437ed5330f8840a1295558a25cb4473f8c23b60ca4a99de6e3d2237775a1e105fc56929ea83d04991c979681c",
    "signer": "0x79749e66a5851c322E885A47b83a32A4Ff588Aa3",
    "userId": "823787296"
  }
}