Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'd65faa4e5ec02d01890a7d7297e4d298f97ef91ec2e6c274f1625d3128834c4d' 
  AND token = 'YhFdu9TOJYsOQDKt/tEDonvXSE3p7a3EZhcepRom71Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}