{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "235412",
    "entityType": "User",
    "nonce": "0x1f4b3ae5961a04bd9e696c7a0f4994b5f737719a356b7128953523e38ae63280",
    "signature": "0x1a2769bd9da65db87b8a6ef26dc8817094bfbd93fde6d1a7f243550cee33e1db2b06fa1d597f347176c1ed05fb32617819f1166ef2318f3aea302bf075ddfba51c",
    "signer": "0xA7D206a8f2b63986B1Af437a01CFbCDCcE69601e",
    "userId": "856769027"
  }
}