{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x0081b24b376b5c333d820e131d34e55e52a4b55e21f4bea254628adff2f8bf03",
    "signature": "0xc20afa86e21d6b225fdda44868e82929a9994707b38efd944a5decb4c70250ac26cb047ddbeefd1e6220f473d23cff9446fc0f694185382d13a95a6420dd46a51c",
    "signer": "0xa994b8dF5782f9A03370955CD9107820F30cD6Ca",
    "userId": "283342965"
  }
}