Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2c5c7533466ffedb580f8eabf18d3c67c959662360f494c2e4cdbb4ea464154f' 
  AND token = 'i25/e5jl0v5EiV/o2/PaCdxmovQlnXOKpvOZvTj8sMA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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