{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3cb73467eb7e936d49f82482d19b41a417d2defd8d766454a1f01dd6bbbb24a9",
    "signature": "0x4b5c04faa77c0b7874dbecddb39586f35ae3288c63ad4810cf2c9fb75527effd75b0f716a66410ee303be4cd5a8d817b65a7d5f267115690abe4bd30b3fc06391b",
    "signer": "0xF4E62AB620B07f17604657770af94608B810eAc1",
    "userId": "585144026"
  }
}