Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '27ce0f6b3725d01ed6bb88032ea5c8bfd63bcc61eca6b311eb2cf4021b911780' 
  AND token = 'tXA6CVpfwxEaxc++T0dH2dEUNw0HFHX5LulHVxnD89E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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