{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230",
    "entityType": "User",
    "nonce": "0xf99426344b91464a14e716fa81ddd087f9a5c9cac141d57da574fb6891b7453d",
    "signature": "0x9793be661ecc943ff9d5d4977e96dd7d76d9b5b11a66d5788ea38bad3ff74b2e587c72a48071a88a3bd93fdfdfcb6b3bcc325bf54d8ab75c5e20e36a5f1dd8471c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}