{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100976759",
    "entityType": "User",
    "nonce": "0xe641f3e2ffa35375d3f14ebe7ebeb52cfb90159814fab3c4f3dd00058fb39097",
    "signature": "0x36e568a3dafc18db26c19e5345bb4a245288132777ee8f4a9f4a8f3b4177e7240fb4cfc4f5b74ff435fea200329b15baf19aa029d12c7ddf815a8080bfb2388b1b",
    "signer": "0x149E204C827f679ba079c298c115Ec06B6927A77",
    "userId": "340903"
  }
}