Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3a6a105032bc5b99ba1cdb3ced7f620c28721ba8d588195d5326d731541a21b9' 
  AND token = 'dc2e1KC/FLMao+rmKYB7TdBX0fyRWaKiD4tSyYv2HM4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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