{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "255856",
    "entityType": "User",
    "nonce": "0xd976db5a72fcc44825245a429340ea05c811970680164f96dd0a523b03217f05",
    "signature": "0x5b95a24ffd685a493b60d0faecb52bf00135ae902d441009fd26f49f430578267e41b79793b0a097e8d27a70312ad5040af85c0d23902cb5ecbe1414bc6136db1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}