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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06bb08324f5adf08dd39a9504ca2b76ee7494f64f21d7294a05d20f16ed7afa1' 
  AND token = 'TIOUg7hWTbD91vJ35iXpFoKeAckA3aDAfL4MAOiKNIc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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