{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x1a1e8e4cfffaa2f1fb295b10f21f3e6f42852eb26f6e41fe13df89c1f3e62eb3",
    "signature": "0xba64929565fc090cc06efff7ad75e8d62fc187ff5f42d3fa324907a1313312282058467ed2af490834b90c389789bae0f1aa602a65b57d007f07f9d3496f47081b",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}