{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6354",
    "entityType": "User",
    "nonce": "0x2d99471005f04d047a50f32a747557bbc38a473725a7216dc0a74b5f631d834a",
    "signature": "0x61fcbaf7df45a086192657d57da217cf4cb85e65279de3c4080601eedbb256d125688a323e69a4286812ccb4d4efc4ab9a699623c4f9e641fb9f1f2671f643541c",
    "signer": "0xce8922BCeB6356Bcf772BCb592290B731c4Dbf32",
    "userId": "322981683"
  }
}