{
  "manageEntity": {
    "action": "Update",
    "entityId": "619339589",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8416e681f639082ab95864f74c8d0d6ddb227cebad8a188076917d8b80c6241f",
    "signature": "0x06fbe2767d28064accd1e1a4008a98758bac40c1fb0f2c0580e5d1b3109308b615628f0fd93dbda540abe48d8685e012b6ea62f80c40ab53cb4a5bf83288c7951b",
    "signer": "0x25E3C51f72Fb7d4734725DC533199253F7dc7801",
    "userId": "619339589"
  }
}