{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "424039734",
    "entityType": "User",
    "nonce": "0xdbf4823c2ab8b0ac9dfd6eab093af7e13111e342ae20f738d984cedbe1866d4c",
    "signature": "0x3be04ec6649c4c6309aba638fe5761382b382c7e45351aa9650ccdba19aa1a40130f4f117eee019a17741a7e64d4cae9a515955b095892fa13832de94bd33e561c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}