{
  "manageEntity": {
    "action": "Update",
    "entityId": "336711311",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x0bbb3d95ee89211ac61fd2e4b4f39728468d78aaecfb1bf79066a0a27f0b3ee0",
    "signature": "0x2171e851449dad4a28a4fa0f9777f4d94421bb70747ab62d6e5ddf5a7bd768267031e3474194704d8ae41038eff35115389f2cd1e287e14639b3141fd135c8b61b",
    "signer": "0x343c684b1503ec463E59aea4066483EAa82F8f3E",
    "userId": "336711311"
  }
}