{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x745d4a420a23ee1faf65b1765a848b9e2c1d1378546e4acca24bbb809179fee4",
    "signature": "0xa6731e3d1daa05d20911ad87c57114522c16549f53cae0f49a8d0f63db7810a04fe44dc7360d1d438120e8e990722473d67be70e6663db77074774bcdd1eedf21c",
    "signer": "0xDA5EF39662B4ef70B52C25F33b5637165C93DE3c",
    "userId": "479039338"
  }
}