{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf3ea7c9cfdbe763d5d78f4fa29f121887f636223a93da715abf49921869f37b3",
    "signature": "0xacc575765b64d545e35a90d54ec76f8e2f35ba87053088cd92311bd83ebfa37f7fec5665f96e4567a68cbcbb07b69ff515e64c9d1f530d745b285fd77926cb721c",
    "signer": "0xAE4Aa9090dFBD5c28246A85E65975Db66B88a24e",
    "userId": "305197643"
  }
}