Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c55ef3150568f98e6a0057ba46b4fe61c0ba5a0feb3757af7e2a3ed136f50ffa' 
  AND token = 'Ifdkmjl6MIrs3CYGKjacmFzn8OJroHyGp3y6vsBS5GA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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