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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1d906579b0882161d3b06fd7ab5e1f8ccf1e46ef65c41d75cb35670381391137' 
  AND token = 'GdllRJZE04hw6lg0lFpXryfRk3Li2yNZmlU3v4JmeAM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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