{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2619",
    "entityType": "User",
    "nonce": "0x34c322215dca24fa5bdde1a1d2bb788a4f37947e09427fb3695e44c2120e9e5b",
    "signature": "0xfe347d0b45d4cb6278cccba0986c73c6b8e7f450dd6d9520b2f15c3884825a8405789753ac5189d9cd2b3f5acabb705bedccccfefb6385f97d8c15a31534074c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}