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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e30a927c9cedd7ec8ecf206ad176ca49a5631ae3f4d32c0aa6dca573ac91abec' 
  AND token = 'TfGqY66zzWTHKdYI0sdunUZgFIx9y2wNUT9sYd6A9xc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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