{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "774076",
    "entityType": "User",
    "nonce": "0x7627486efe99d9979b4d54bd0c1a38f4f5c9949af9a148efc67f780503c9f377",
    "signature": "0x91e3dcbccb009b2cbecbf080b11c53a02f49693dd0625ac630655070d4f3429413f01232883c99144dee62d649767f50009c540fa85e6f8fd8c0291e5dca252b1c",
    "signer": "0xad1E2A70fa1227797344FD6df31327a26552461a",
    "userId": "153162"
  }
}