{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42712",
    "entityType": "User",
    "nonce": "0x4d9f87c907076348e9e58735237ed49799eeeeedfc5caf0726d5df4c70fa80f9",
    "signature": "0xe2490fe368d0c4d80f92019a697a1cce79bbb7e90c283695cdbc72d17cec06331a987640d5d69694d5aed4bfb83a50fb7ab12c4e65c95740f7b03f7ad0626c751b",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}