{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf288f16855d5358b8e5c792d8bb14dedbbd47e6328a6c98c81bc7d890bad5f87",
    "signature": "0x302b5a8a2faeb7df06ea367ff41741ffe0486be1f457af7cb8f40e856c9c5e471ec7e5a1139b259f677023ec1f543ecb0460516f4930e5e819f68fca5fe1058f1b",
    "signer": "0x225A0F26D8c354e4B16725295bDabb4983d0F6F1",
    "userId": "994175139"
  }
}