{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283478",
    "entityType": "User",
    "nonce": "0xe0145db675f7e2694a780d85d0e5512d9ec12be17c0c9ad40249906c54ccec93",
    "signature": "0xa859aef103adaf91e1ff5b60ac80be7ca04c840572e98c1928a760fecf23c91e75ab62914fae98897c51c3141258dc3363352fdbcef47ec1662715f34962ba511b",
    "signer": "0x1B58D273a8157400598CDDfaa79118FFbbD0810E",
    "userId": "212717491"
  }
}