{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1477402",
    "entityType": "User",
    "nonce": "0x8d2c3b8cc72f41a251a982d1c9bbb0020d07fbebf831785ae4150cec2f893e9c",
    "signature": "0x3ee86000a2fbfe8266556394dcb49cc3e24fc7cb1af0e23cdb0c59c0538fa4a24da6f14bc1f41bbf5867fabbced55c95c87dc074dffa90be62dba93b1e5c5bbe1c",
    "signer": "0xAaa55A99Ec698740AC542b56d93C040D51b85A4c",
    "userId": "695517599"
  }
}