{
  "manageEntity": {
    "action": "Update",
    "entityId": "231207555",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x03ef1556abdf4f9637dcc5965bd42e508cfe7a1b8c35cf6f96201e6b3aaabcc1",
    "signature": "0x5573be651419b31a5b65185cffd47b5532ea4059ae69a3269277ac21a0ee2e3917040a03b3e36085495a3f9a1a97e163d196a505e157b071623a2e95800089fd1c",
    "signer": "0xbe92763E4992F8E84a6E26081B99e19b5f9f6D2f",
    "userId": "231207555"
  }
}