Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1076360b2d26f0e085db5aec88004bc98f2f7791cd920737a034aea6864fb1cd' 
  AND token = 'd/dUH5S+PlDNbVrthqoT+G/C7RxVj7qWccCGrJHIOms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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