{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "629530515",
    "entityType": "User",
    "nonce": "0x7793db42b1a5d07ae29626c6777b0fe27dcf3bf96f67df20c7ce3ccafaf06cdc",
    "signature": "0x5996b129d2ce2a540fdf9f6e0d95aa6878f9e5d69e5c42089ff018c340b6d1b5592f678e5143230d4a1d27bc369ede5eda0ddb544af4ae47336575885487077d1c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}