{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0x6b40cb003a4dfdb1c1185853ea11a0bd99c97b6c33e844f3e4f33616dbe9642e",
    "signature": "0xd58b354c56fd32f5fdd513b52c7f506e7c89a8136baec947b14fbf6a8854b26111667eaa0a2dd2482d104b8ed09dd0a450222a1b3d612c10d210f4cbf7668b1c1b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}