{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xee4959b1e9423195e621690bc83ea87f736a0008a0896fa1982e62a318c99d83",
    "signature": "0xc9a0e8ab6a86273792157447d29d07e2fa4de08cda69853561926464b2a9f9711f8da689e1acc6ebec2b2e89e58f569c1ade0b45629d4ed91a21c4965aaa53eb1b",
    "signer": "0xEFAB3332CD5EA33e9817aa57B32CaCb8Acf973A4",
    "userId": "407216161"
  }
}