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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '58e7e64ca7c76a788eb47e8897d0cbcf42f86b9c1dc0674aba4fcb13cae3373e' 
  AND token = 'hWVoIMZDTu2IxEulUAJ10mJw4THgJQajtRaw8vfMHd4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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