{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xabbe77e343e00234e72d072ce65a42028c5bcdf2929b5fd685f77a6b4d7b72cf",
    "signature": "0x55a3c7d58967d496e9e6744f4ea147e71e35c22057d64189849a125446b14c8743ddad61aae1783f6560647b0182bad53c59fd9243b440a8e66cd144204fc1b81c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}