{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335443",
    "entityType": "User",
    "nonce": "0x6485471a5d894be55ff14e5d51c357a447c14c2fdb82662e97b1d1cf841d0a8e",
    "signature": "0x2531475b5111af1e40055c976283be76b594f6e6f2a5a4e439a71db506a87187632d02dfb28521f5d9ca23c17558cb1bee293b47b06dcc4f7ab1ddf31bc94c6a1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}