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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '95ed08fa189d1778afaa5b0a69ad38810fdd9dfe1252b2ecacdb3b808558972a' 
  AND token = 'WCaYyw6VKutwMrWdg+AGIbDTVDX1Ka6nnn9QNUY3QD4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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