{
  "manageEntity": {
    "action": "Update",
    "entityId": "444965341",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x517e1540fa47426528530b63db779292b7d5ada88fffce6840836c5dce2024a4",
    "signature": "0xbed07ba0b1ecfcd9c2a073e18e14654f28eb6369455dcdfd11317e2595dfb6fe56c91ad12733b0cf4de2349e29a9c1e134d3387bf6aebaf25af734bfb153d9e81b",
    "signer": "0xdD03ED106abBEF4982159500e32B8602B985a69B",
    "userId": "444965341"
  }
}