{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x35fb9a8128aabfa3db80bdc013d9062a330f3e7397e1fbe71b602812363a8d79",
    "signature": "0x379a37626183b5d920a6761fd4da3bfdd9d40f46f96a0a2a25bb5771a95f16c570165a295cf50a4bbbd468efcaed69892814573f4b8e951162f123bfd0eecb5b1b",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}