{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274010868",
    "entityType": "User",
    "nonce": "0xd9bb6a744980f24f4acd4cd9e86de9e36b06bfe882633aeece3b7457fb9a4ea5",
    "signature": "0x0fc91a911f134f10a4d501869bf0b3501f60534b2db9ea7cadb7b3d7a95d5b3511e9f8c8ed1fcb3b55513c0c17a4c4aaadb419134f1676f103472810f9d63e991c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}