{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384526",
    "entityType": "User",
    "nonce": "0xe26ed4ee0b9972cf02548f0d52cc3105247d968e55e97e9359c7eb25eea319aa",
    "signature": "0xba228880d231b660c300fc1c3f05394d121d5856ff2ca9e851e7d4bf0acb695372a1917ecc9b1cc64b534b8bd50e046b9ee9b1e5e7d9f6ac44d616fe00849a681c",
    "signer": "0x0157D745aebb0AD9f297C69193065ce6fBB09853",
    "userId": "208486764"
  }
}