{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "511280302",
    "entityType": "User",
    "nonce": "0x78d903ce195dcee0ab0f3159a0a55410331cd86588edb827ed917e9e8110f085",
    "signature": "0xf6abe88d2ba4df1d56f5e15b813a051288b166a0de13ac94d9b68afe1ff59c7f08460b16d255227805e9ccaeb73da60d06fd1d81a09ac732ea7a95aa864ab1981c",
    "signer": "0x8a278E79c8E7e655B94c3e6798972A44Daa2c6ad",
    "userId": "24098924"
  }
}