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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '657e13a69bdc5a0443ea4fc55383b95b05904254d1a435f260a10f16bdef25f7' 
  AND token = 'FhWz1uq9mpQWOXwGVRRDU1S0WZ2dQlBa2pGRAXRIgNU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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