{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x521a6f525291681488142cd6b6ddabb59e7fa2e08b099f0a2e2a6cd48adc758d",
    "signature": "0x186dc527c6e9b8b8f53894625693b068f9467850e2624046afaffbfe5c3d7edf1cb36c8bd9dc82f474e401d8056b86ff87b917c60e617caf324ad700273687321b",
    "signer": "0xCe95D942169b894c09fD208F55DB0eaB9f2f98E9",
    "userId": "457070544"
  }
}