Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0630b52cfdb12160234c934388ebeff754bc3cba552d0bd9694dd1aa6b47d930' 
  AND token = 'WRd/tS7nchL9wMiOGVCFa+bLdc9j/TASj3T10JVEyFI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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