Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '849b1a476e3a0e2f76512c92d3d7c96daf334347b8b584392cb96a91b9101f2a' 
  AND token = 'WPue8J2Ro1zq+hP/P/IeI+xE175NOckOmnZX9qNrbDs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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