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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '61ca714cdfa36ee6aaab18a6db97466fa8219f1e7b811ea89d894e5b19493d26' 
  AND token = '4q1yZv3gi3lIVI9jzNhcW1sflKMWYdS4rt8+eG+A37s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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