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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b043ef670ac483cfbc60d6cfb063e7b65bc20fb55cbb23c5f82b94e0373ce49' 
  AND token = 'rH2/Q/M++fxG4sRW6bNOMAEdAJRdXr9MpvGVCTyVSKg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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