{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364565299",
    "entityType": "User",
    "nonce": "0x3a049234d594d5b776bb47eacfc8d55bf69b1b7552910bc0e8036ba391afe1e6",
    "signature": "0xba9fec009503def64e7257c6bd68f102016b937ab08dfde07c151169870eeec3305af5ddd095829ecdd22d81963f9e275f9ba2d2bb3c8acd20ba9b561dad398a1b",
    "signer": "0xF83f8804040D884fCBAcD57d4Dbeaa764176F931",
    "userId": "455502808"
  }
}