{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xdfe80b5768425168185df0ce535685714cc7088effc6467db90019dc08a2cee8",
    "signature": "0x979dc367af52439aa25f69293fbbfa4c7473d4deedaab16d8a5db3ab140ce37c5485782088851810e0f1eccd8417849d65284752dbb0eaaa8ccec0a6cf19d2171b",
    "signer": "0x29ab40Cf9CCC43E585985Eb74338824e71FC7FAD",
    "userId": "164496369"
  }
}