{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354535",
    "entityType": "User",
    "nonce": "0x49bda19cec8cffd7bd74343c4cc43bc1cfc3247baa5ba492837bb4f35da31e49",
    "signature": "0xdbb5ea822c657d98fe178d12f92ba8e08e650bf6f7152e0d01459b95009ead7b3276289120cbb7d695a54c81b3a832b1850fd8c41ab1f07ce89ee36317e891bd1c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}