{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1655515",
    "entityType": "User",
    "nonce": "0xcf61312f4e98c445a02f0bf4c248630da685e893981b9869f8777a7e054f5837",
    "signature": "0x13495de6996ac109237e8b4ee0e4665a47ff71d4b187e6db30740184aef2423331ffceaa1567a544146178b381c5ddef567aebc01813bdbf9cc015cc4bb57c1b1c",
    "signer": "0xb001DCb64Bf57b3EcC76C4Fe5AbfE2a8B084D6ba",
    "userId": "641557420"
  }
}