Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '55625fd088b780efb0e6fd0389dd67fcc778c01e04c67f9a6b4cb847709512f8' 
  AND token = 'woMC9/HVd3LYb9ZL9En9HHCCLOg9ujK57RAJN2hRIuU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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