Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'dadb19615c096e7e4424def22534c5d662ee33ea3c7c2af06f599c04890b1762' 
  AND token = 'PA+EnU3ExMtdt7dZUM991DJDhp0ZcYWj3hG8LYoogaM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00058

JSON explain

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