{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0xca571143ba5932b4a36303fc2a1585e25878ceb117f8adbe74a4f09d81af4572",
    "signature": "0xdb5c8530eff192aa8d22df4cfd12608182fc0a928ed28c3bf615e85876f20d2d0f04eeb91bdaff60b19286b0a07f18e1995425fb0536873ee382bb5286600c6d1c",
    "signer": "0x1011297FAB27Cd869ba8313983bF4793AB784705",
    "userId": "540848139"
  }
}