Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8828c568c5543188148c98e02c5e14eae419ae2406705e833d62e5b25e397053' 
  AND token = 'DIvp1Rm5bNvAGHYmfqVJBNVfgwEO+Pm7dfA72LBDu4c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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