Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f4abbfffda2ec7abaf59057fb7e4bab0989b90b300bb6d8badd1ad83355de18d' 
  AND token = 'a7gycUcmbk7psuPybLLYqq1+MsR7HuED22ab017biZs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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