{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57904",
    "entityType": "User",
    "nonce": "0xbcb4b4150b9f9a065330260a3b4d9749ff2d8fc2043c792a74d527992d2b382c",
    "signature": "0x1da1d3521e5479849bd7ac2d74281c7a7a29381f1000e59b0e0f3e5c245db1f706869d9e3e28441880b841ce0f4e67729c828bdabbf51650426f1d2f1631019e1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}