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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '59031f2e0d530d4b5913d39797fe4223e5dc7189aad46a528137668dfa93b641' 
  AND token = 'SnIUxUk8CWvpb2tZ1Bx4YTd01JbjZ0cb4ddPD9ri2O0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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