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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '74d908a9651838de61c66a6afd9a9630a8584c498a6d417fc99f3436e2a5789c' 
  AND token = 'YFEe/ibSek9wJurhNs4w9sAZ1ga5TG96D3tYLN2fyNM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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