Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ab29e80fa0b802eeac2a3566213787c1253c77cdee396c276eadb7cd498696a6' 
  AND token = 'l2+HUeNFfwuSKDi0uOuzCjhVr2lSaXraTXFMGAej9xE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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