Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '745420fc07f51eae5d207e818d875e354697db1ba2145c608137414937d44be9' 
  AND token = 'HH/ffhLGmarxZ3AIHv+nZDUTLOQEwbpsSEnt8zXLdYE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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