{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139194",
    "entityType": "User",
    "nonce": "0x007f1ed8af913e34060b34971e30b2a96679a417d67dfd0ac580c61adfa38b67",
    "signature": "0xc5b6df799a3184a6d76ccafd2f130cdc3be4c126c0849a5b59d9c2d9227c550608f0c293a4efe40150b2fe0d8d65c8a56e2a0f11e28721aa580f2bd1ec68d6de1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}