{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1036471",
    "entityType": "User",
    "nonce": "0x9fd3bf04b957a3964b30dc53e46512f6ce54eb70b34736dcf4a99b91e689dee0",
    "signature": "0x1bb3c257271f823d3eb6616aef361f6a371455b5eebef55e4fb2146bc0560f8b3e57f1df0454656ae2a2d809384534df4997bb1628bb986f90dd3666569bd6ab1c",
    "signer": "0xa4A8a4853051b18e0f0f777693Ce34CF4bCe9385",
    "userId": "634886384"
  }
}