{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1",
    "entityType": "User",
    "nonce": "0xfde68ac0e68f76d65d7c434045c1619cf0d89ed374da5c62c740ad342e64ca38",
    "signature": "0x97bd1bc738c1c345fef7cfd07f245ce7082cd62fd3a79d8205494a7ad5d9cd825013d4e720d83816bf3fef0c8fffa62d46067a72cd2d1eb0205a24ac44bbdbf81b",
    "signer": "0x01eB7915E4941D64a8ddf370bE06647ad5F79d4e",
    "userId": "911613164"
  }
}