Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0c60a2aab45975877378750ea4a01f5015c819954cb42b3882476d91e09f6115' 
  AND token = 'afBcKKAWvSE39VdsznjDEUYmz1twQONSI8o2Af5nWXo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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