{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9789",
    "entityType": "User",
    "nonce": "0x874c7f6e2342b256cb01074eb6a04a7dd629dc7b2d5c179b8c06aac3e819d3d8",
    "signature": "0x4849b1b93b731c81b30104b992f735c54e72c0debc0329d20f401fc7e66e42b97ae8e09b339de3deea6a4ab276afdc256621ed3484ed0763668e647609158b271c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}