{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd21a7e8222e7a9baa80e4bdcd8b295379ae41e005d09f56c1442f801ae8b53a1",
    "signature": "0xe07bc3024915b93a03267d9e67b92163562089db17a3bb7141e6d3d47d6a1fc74fc770fd4476d02820b13124cf0e96c6bf23279e36ca12b923ee0ad0f4cb1cb01c",
    "signer": "0x8Ece451d150139b6066e32CEb26DaE4076da0293",
    "userId": "260942771"
  }
}