Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ee4462069b70c925adcb7b1e4ce22985a2eb21150d729cf3ea65cafc4426e0a9' 
  AND token = 'YfsNqpSrjuaRY/5qYFIGaqbSt+PF2mDhII+8711HiGY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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