Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f3573b11d0087f9a740d952931d1e8aa76e761de6f528fa43d46ea0a06273eb7' 
  AND token = 'mPAHa2VRdLU0DSRV5RNtAhRDPOestgfas11AMClggJk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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