Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'fb4057c595d6ead647c9b93c0a146feed8f8c7b6957f3412b1d111568f3cff23' 
  AND token = '1Dg/hcOekxOuRyF7WnS33CR//L5QXfONLdAAN2tIqyc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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