{
  "manageEntity": {
    "action": "Update",
    "entityId": "602257923",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x6fbf305c96918f7341725d19d330f90f7ec3b93319316f60b417db1171cda416",
    "signature": "0xd8abc6a55b9b0eacb8fdbc647a393a7e02354426c9ad66d5bdfd6b685ea1459f2ab3ec0ae6206f52dc448aff204027f04787cd246d65e4c5ba01b95539e4ef901c",
    "signer": "0x65BD04fd3A35eFc0A8f60002FB2a5472acF38381",
    "userId": "602257923"
  }
}