{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x366ec94334d0180542b19db1e7282d602b64d46fad81ba09b989c0fe9770a17c",
    "signature": "0xd427399e604d14f6443962d1ff7c1ea36935f5dafe43a58f8fc8c72faeaaa61b009f60bb21d1205ec06071320494c1c594076c8cbac6edd03738d818783d1add1c",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}