{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318582",
    "entityType": "User",
    "nonce": "0xd612c42b4b34793753529d75441618b20220f5c6ea8da94f2a80fa88eb0405a4",
    "signature": "0x628359e38dcac0644bfffefeec64da33032d6db4a12745bf8b2a1ced1051ef9f71fea95225ec0ab3ac568363b4a0db5a6886d6d92f85ed655e833b2af4023ae91c",
    "signer": "0x8e57c7C677d2249437F4bEb640d7aEBAa88b9C12",
    "userId": "230723724"
  }
}