{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146510",
    "entityType": "User",
    "nonce": "0x69984dd8f3d0cb1262639ae7c722a768d7155fe10716cdb3b70babec04887e85",
    "signature": "0x2535253e7b6270949fd6339a8e0bff5f7384a946c13fdac901102c5021a03e70779c75e4b4c76665b9cb53de7d80e03b093ca48270800cb795e636bd666e43d11c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}