Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0a1d059bbd22deac4f47320f82c056218aea0e37b6c7710f0738b9f99acd1370' 
  AND token = 's8I0al7NF836NkMmydpp+dKwN1Zv37zHO+M01uEVyWY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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