{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63168",
    "entityType": "User",
    "nonce": "0xb74cfe05de19a584280b29f17cb4ab134b09153b11905044f7cb3d1d3c183a18",
    "signature": "0xac5f74a5cdbc1fa10f75a5eafa08dc3719e8f36be445db5d7f39e31bbf68ce41385142148da5f8c8da54a4b021426cb164136e0919b1f4c43f7b59d20361cc341b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}