Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '99023bd44cf5f4c2a97fc02b3ba7a858decf8f79431781511bae6eefe079c040' 
  AND token = '1ceuVubgAOKuBROMpa+zGfP+8tsuMMGSUPnGeRluJNI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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