{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1856608",
    "entityType": "User",
    "nonce": "0x49072727fc309b617292319a8a5d01e63cf80416fadfe99f9b52798f8399dce3",
    "signature": "0x8e237d85f99aa47484286e913c5ee13a8c2fafcd77d0a5e4a3522dfc8c9e10d44f0a8f98d4730213e215c2830b91dbb9c365f29bd10ffdce6a6842c497e48ec61c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}