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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22ef7da9b24d6c637a43c0e5931493fb379aa0ec45dbd3cfd39e0521070842c4' 
  AND token = 'vQ8lVMWdE8BgAJRc2OSaXgn/P3IGykzkP/U7+rzH1fk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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