{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1471974",
    "entityType": "User",
    "nonce": "0xa5e78db403fdf6be915d94bc7218f004d273eddca4e6a4372293b6552ece5f18",
    "signature": "0x5bccb3629a76d1ccb83928d7dda33fce1194cbc53c5dd254e625be4f29d3ea9a4e4e7175a8da5652583b6ed25b5d7ff466d072e7850dbd41e440130f1a895a491c",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}