{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x573673fafdb51b55f2af7a869fe2dd8043e2d1edcfecc2cb469f759a7a8e07f3",
    "signature": "0xd865f2ce5d87907fdf180ddf4c900773cedfd5f1bf031d7becdd330fc3a815286ffee6f10323881f810560e7bf05a82a8db32efd630e4f6b904c4382a31e5d691c",
    "signer": "0xAd33018d1AA234072Eed7f991F9891f3688158d3",
    "userId": "413212044"
  }
}