{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "658882136",
    "entityType": "User",
    "nonce": "0xd15a406a4d377dab301e5b167847448f4925fe5c4447811fc65731bafbf11df5",
    "signature": "0xfa68cedaaf9b8a3af8746715b9377da26878b548a543ddc66d1dcf1e3ec4ed510be2d7e640a7ad9703f3ce10608058f146e83451ef8d6f5b94eb28fd322530681c",
    "signer": "0x4C0e8973cC8C5BB66d6627C8D489e336f0825A94",
    "userId": "939865626"
  }
}