{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "297345",
    "entityType": "User",
    "nonce": "0xfef6443396b6560b255702b81515fca505efdccce1a01b178ba3f46f0f6ace31",
    "signature": "0x9233ffe96edea8c4f12756a37a78ca4142c81ad9034215f41563d8d6093282bb245dbeaa5fe79a09ace2276ea494876a5c8025a7078e2a9b6f774af387ad72a31c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}