{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0x6e7be87cc502d4024e551203f8979490508485be4d0b5755346a2214410d58f1",
    "signature": "0xdb41f43866b03c7aabe75b7a85118f3707600a821cfcd32d30a609bd406d6fd80cfc5b7b44e3697c242f6fe0d7429ebc173e327cc912eb57ee35f5d8071542001b",
    "signer": "0xD23c96a130623326f2d6348fF466F611CC78067A",
    "userId": "607041972"
  }
}