{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x88f2ad73bdf46a1bb3ca6db46f33d1b1ab4b042ebb69b58f2160c806120ea43c",
    "signature": "0x50a3956fed563c452970957a6ad463eeb7e6fd1d541726ca473b04057e304c48100d5efb73f552e53b5db4cb1b3b0f4261bd436d88de1edaca15d07c463fc3131c",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}