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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2479729cdfafdfaabf1fb0ae08ca30f4163b792275db36ec628a22ae215e0613' 
  AND token = '64bLQx6j9m4qYAkKQ40Qp6tgNc1hdCc5Ed/jlP710QQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00049

JSON explain

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