Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '292778af95dd835cb0584e013b7564d39143010726671dba40b640e53bc996b5' 
  AND token = '59Zk33XKDg0zoTMYy3SU3Z2g/376PkmXumcCJJO+kLY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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