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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22c7909a4a10e83e1212e4c9f7b797dd1a265d4cf8963bce1fc5871c2a4e72cf' 
  AND token = 'YnAAIycROPq8+MnLGOAMz7J1mRtwSYkQqhx/FcDv92w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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