Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3deabc05c78c3efc0e09f38a5fed53ee97f73233331481dd40a3e717caf8b70a' 
  AND token = 'u5RcAm1gNPtTiRrsX9bz2UolVgFWYaEvvUuwcVQhQGU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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