{
  "manageEntity": {
    "action": "Update",
    "entityId": "380767039",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeba98a85a35b76ea99c27cb3baca94686492a4a7b94e1144815f3300b768fc1e",
    "signature": "0x5ee0a68329249e7eeaa7b9a5b14415bdb957a7f9fa1279993ca897691203608178d9470764023777908e3c680c2e8e9af814fad6f3b555a48ef4e39a553c45671b",
    "signer": "0xaddfe8a42a112B9e07190590DCa78C32CB396871",
    "userId": "380767039"
  }
}