{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xb6bd0bd0503559d9648d859eadc6e397eb80c2068353eb2c7b33bd3be11e7313",
    "signature": "0x16b0e69df2a9cac30a6324be92d3b7560e6b09d08042279ff8398479af0c189774fba6be034d8086d42a52b579b53893ef27e3ff4646f85cf6939de1672ef8861c",
    "signer": "0x1eE9054C1Fbd103C220810Af04980227e57d33E3",
    "userId": "52328655"
  }
}