Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '79582c5fdecf621e8b56c9ddf0a0b09c147fcc0648190c089067e10f7b836e38' 
  AND token = 'YaGEq1LUubnzEIwWJP7ktx7NX3R8aKMhj2d3yb/3dzc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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