{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x16e0de34e3982c9641138f5fb1ba02040df25822dae7da74a054d4b43af438a7",
    "signature": "0x3ecd37ac73cc5758ce18cd25f6930fa8368b837035fea3c6511adc94d082d4a65e7b32c79003d97e7d20d4959c472451da3f11b166eb007ad0833496084efdce1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}