{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0xa587ebd3dd93b931ef8b1f5d0b884910ecc47836a7495cac894546d7a490c897",
    "signature": "0x2eef57ab09a6b39b069ae1e6f9fe925878e294945c62da45c6c2aec7e489ba22332a09fa426a2525f7b98aba9a4e9031f1d532b5a82f5f2883c3f2639943457b1c",
    "signer": "0xF40Be525727aa96Cf61609f0A493d9E677f73a33",
    "userId": "159460377"
  }
}