{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9b6d432ddc1728d1f9a647e4b3f2bda7f70c565dcaac6b0affbb7ebe3feb610c",
    "signature": "0x32b65b96e1a78bde99c82fcdb4e792176cf86357b8db2b5c648de1033009509508c7f00f2bf8d1806feff40311e4018e06bb446429bc466a337fe4dcaff0032a1b",
    "signer": "0x0C2419693CCc2ac3Cc41A0f940192f2dc6eFf86C",
    "userId": "809712791"
  }
}