Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6001157db52985b242be9a5e065d4825b9f2d206538719d7ebc2dcea98e70679' 
  AND token = '/+rB5790L1ns83ODdcegk/7RZppQkIgCyrwP+2xvCwY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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