{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330003",
    "entityType": "User",
    "nonce": "0x9a891cf270d9d3105dad6804f0b00c35db6f8d95cfd3b4a8d5e878b45a299b03",
    "signature": "0x1646dc6017a84c244e5460e06af942071f85f34f8de981b0b5bae5df853329ef405ed44409a62e82f1d91c113098508f352f5deda1154a623e34fc3c21551c9f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}