{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x77d3c32a690fcddc297e99e0a4902e50f2033a58de81fb8be708d2fb5b1c19d9",
    "signature": "0xcfca45d5405a0c97f3a66289dde4d2be0af5d1a82ef879b06275647735ce9c35398e3854c8baeeb12a4f5a01d61b55086ff98e55c505eb22f9b4d4af53544fa41b",
    "signer": "0x9d5d1f1a59bB255396F7F1e7DeB307A4F66f15ec",
    "userId": "429311703"
  }
}