{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163983",
    "entityType": "User",
    "nonce": "0xe72ddc8346c8cdb5176e75a3ea9ea8115b636e83944c4d1643f9a775b2a2f65b",
    "signature": "0x63f2d24dc84c886e032d1b13d8afed5c5e60e938dc2aa278a5512cddbd9cafb5392b9248eb14dac66b20d45cf09d3f04633b5d9b7543f1edbcc0180881d407621c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}