Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '737979c2731efe2b509ac2270f610dee97f5518c0d83db535580ea8e4230f78d' 
  AND token = 'R7u0mY6+1fUdEa6QX9qWKqfAW2xgeRoEUKgZp5YLOp4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00042

JSON explain

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