{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74672",
    "entityType": "User",
    "nonce": "0x15a0c1e91cc4b58af4fdd4f2817d310a498f9c953117026f97e3efbb3f642477",
    "signature": "0x0277b8869a75e294d83c85fc48ba8f2f091b2b0ac573d008a4bcb70b4e203cb557db355025d5ff85da27f6a0457c47086ba3d2ad2e043455dc79f5246e8b52931c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}