{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0xc89e12c15c6b8ec24d5dc0353aff7ede7e189fc805b5bc69eca60450314b7cf6",
    "signature": "0xec5a7ba71947046cc0189ebdd8a87a997c05ea16ae2f3b762fdbf44fae5210c81749680310408e96284a40920294ec72d9d0a201b0aba460eff011034d1713d01b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}