{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x7c39e40f5868d569f567aa2ae2120e4f11af8b6dda6f6b52ecf4b9a32ce84e07",
    "signature": "0xefd4d18183c9a392664239f6061fe72fb606b456bace1916bb2f6f9074130ed770fc74bd32504b66974b2d2ec0fe3cac38311db7c1c549ce596acb450d41a4b31c",
    "signer": "0xE280E847d2A686a5B17DF698d98323E53A33789a",
    "userId": "915319400"
  }
}