{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "313667",
    "entityType": "User",
    "nonce": "0x2cc8d171800c9c55f58e507ceee6808b970407c6dfac1ea943f2ee5e4941c6a3",
    "signature": "0x09be582accd5c6314db256a1696cd865a14633e71663e868df033a5c1a1eb0164f24f1fed78836e8479a7e123968745ef2c9de82347eb629504967c27746acbe1b",
    "signer": "0x63EbE5a1B5C5F156330BDf810f5fFf6A224c75c8",
    "userId": "309080"
  }
}