{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "327343",
    "entityType": "User",
    "nonce": "0x7db0befdf44768abcd698c77332da06dd879526bc827097023931c0d0ab22762",
    "signature": "0x685fd30d2717661bb6df3c8277131ef94848bf996706869a1140a495b17a6ddb7cf56afbaeafc319a62244000c18a482cc4c3b8b4cd3252c7bb72bdeb70593bf1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}