{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x9d13d52ffa2fad5691efa223e8e704bde7fe5c3eaef5e0327cc5d983e4f751ab",
    "signature": "0x8c6aedd971a318989fd066c7757365b2a8820ec147387554a675c0f2f4708f3503d9aff407d611d6e35131123b90c674a7aa7a1e40be00f843510fd480911a691b",
    "signer": "0xCf3E6F9F4BF41C4e355E01484A92aaf61B6dd8a3",
    "userId": "149919577"
  }
}