{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "450156790",
    "entityType": "User",
    "nonce": "0x20a05665f51167635bba76a30299804ac16c099e10fa87ae532507006df68e61",
    "signature": "0xdeb0cdc47730985fe1009e6df9010a6ef41ff802dc5ba0be510c4c962be2b49d24e3b170bc4feff2ba8e8df373bdb5fbb71c14e95ced5d8ae1435301882d75db1b",
    "signer": "0x1366a1037C8F2E691bA2D0dF3a1176FbA4736510",
    "userId": "39692"
  }
}