{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2fffc15999bf319c194c0fb56d4b283af6df32e49192f5f4686bcc6193993711",
    "signature": "0x266abd3cf58ab8b7a11ee8340080178936fd30ed19027f0985b03294483e9d6003db736bf44e673ad87681e3ebb337932e2bda31ccc7f554b31cffb02ebfb6721b",
    "signer": "0x9695B57A39165c520230e4E139d463488b1bA4F4",
    "userId": "595472703"
  }
}