{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x773b6284e85fc55679776ee735221f3f902bd297bd640fbb513919fa6a514a22",
    "signature": "0x7b2fb1690a14a6e2985b8419818ebf3463463b5bdc83cf113ef5f1d1bd1049e827e0a399f50cec9b0c25c79c97f4124936b31f3850486f65b3009953bef1fd631c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}