{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "391242",
    "entityType": "User",
    "nonce": "0xe56a52bf187ca74fb063839f2a110083f451c0403fc854fadac64d42a551ca24",
    "signature": "0xa89f0e58faa3866c7edbe36352d250bdc16280eba5295bb3a8a12f79a88b7c197fb41349ac3228e5a58181d3b7a497b7650604e20947d86ab417def7b3ce764f1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}