{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64136",
    "entityType": "User",
    "nonce": "0x28d0d170e8cab006ee58c27df549026976aa16e7b00621d646357074f6d3c7b8",
    "signature": "0x3840f3eedc25c054d1b8384efecfffa67b62d279569ac3e209219882c49ac14747328a12b11adfe5113031be9b7a580f2fe645d80a07deb505af1058a6c0f9621b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}