{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "423",
    "entityType": "User",
    "nonce": "0xc16b4821fdc633a04eb08babbaec2b6daf01c750f9b556f596cc51731b8abed0",
    "signature": "0xd66dd1492d1886209b12070727f19bd85e7285bd91dcd947c63a723ba48f00da1f644cc1621bcb8714ede5286b4a2fbc47a07704aa55a04c86711a8503e489c01c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}