{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb6395d0f91a5f4f9f20d99f21958ac4a16729e052528cd74358db8c1bef99bcd",
    "signature": "0x5fff231b1ff25a6a3036a4c78127db069325fd3ccca915be621345b3626d934426518737807f51b1886c75c83970a199cc52b42f4b117807a34152a161852f4f1c",
    "signer": "0x1343A447A63a7cc266b1d037824899a8Be31Ed83",
    "userId": "569171717"
  }
}