Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '64378533b3e06a89b55ec10d77620c0d03e71ffabd0f081a06f7da882b058fee' 
  AND token = 'ceTDJ9LayYPeCB5IG4c/cb2MeXio7S0gR4pjCMfd2Wk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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