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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'adda1e9470c1011a7c8f94f20d63f4c5480f79dc7f2e5eab4e1e730410c3d363' 
  AND token = '023S/LyNjHKTcmJsgBqV1JhuOE1aSI9YddKF3qdzqkw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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