{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x35301ee65c3977b7a229b65646c66f125eefcd4321389cc37a889cf48c9303c5",
    "signature": "0x61e7cb46f164c5d13c4e67feed6a67b3d78035014ba93e3493495e9b1867891a6df06a25910ae41f6b7594fa5379630889e2e7bfad795f3e21dfa2ef6badb4d01b",
    "signer": "0x849b8180f084363b37768C823c174C9786020A66",
    "userId": "817339612"
  }
}