Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c96bb498650f9f7821e78fe451b78ced0ef52f380fea132f0d3ba04470d228fd' 
  AND token = 'OjP47rnPkb1zQm9kj8fBXZuDOov/D43mobgICeeaChQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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