Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7e451ca499de631428cef9d7dac8c760aa46bd10e62a67343267ec003fbfbf79' 
  AND token = '/I1MmDGKg8UycwWo95E+4uV6yWhQFjaDU9HSJwNl1Xs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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