{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa577460e16906e2fb1dacdbd52e5f43384c244950d852a141a0717a8020e6218",
    "signature": "0xa8681b0337c7f3a7884977e9ef11b3c3850b16e6b09c8742c1e0bd5c1274bcc1608df2b665989d0afbc1bd7966f7aa71cba622b31c455f312483111caeb729051c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}