{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163171",
    "entityType": "User",
    "nonce": "0xfe16cbc478b2bbc9efe197167093c7853a89ada1f60b7c797eb4285d187b6ec2",
    "signature": "0x102284d449995da11a7f957c8ee9f2799cf0fb0b73a05b1e9b36772f5686bb884b4c7484beb616f5f26f37d353878688426cd1d6163652df809f330c5cb827241b",
    "signer": "0xe23f94433EED8958AAF9868141BA976B8fffb969",
    "userId": "307915745"
  }
}