{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x04ff959b21ec00d9f06ba5c6cb0e7033eea9fb5709667effd1b660493c6093aa",
    "signature": "0x8135892af6960dce0c61004595e5d716b8794b1951592d872f1c3e1d5bc1c81f25cf6d390a5d31073a8cc6ddf3da654c944033b876089a2c012d0a596fd165091c",
    "signer": "0x914c1658bB5967D43E73304cD48EFa424776a6C8",
    "userId": "216111760"
  }
}