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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'b22805f26f5279d947fedfa63d000d5226e6951e354e7bf5315629d64fe2194d' 
  AND token = 'ckHCX5W8fiNdq3YmF24AgkMUEhpiRZ0DMEmyjukkM/M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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