{
  "manageEntity": {
    "action": "Update",
    "entityId": "907622463",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x300608f6dca3ec57073b60401093656c2ad77bf5f5be65a22b4d62d118d537d4",
    "signature": "0x286c7f5af168a5ed730294e9abc4e82566003467fd2d2d42636bd1ddf9d5ac5f6e6fdbc0fac60156d8e6cb7e03642b35d053bb74aee19871335db677a6adda711c",
    "signer": "0x0746ac63Fa7A7D0c953CC81Af73B6a193363946B",
    "userId": "907622463"
  }
}