{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7511",
    "entityType": "User",
    "nonce": "0x70839149f691ff9a75fcc310b839eb5bad2f0d59f896c3b05b24f5b9abfe91d2",
    "signature": "0xa97bd993426b505c2a7c2d603924182a0992c9368473c5b34239f5a1316923bd3db70e363c7b17ecf4ee9a9edc5847c897ba814f106b41978f0516386b4be3f61c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}