{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1685362",
    "entityType": "User",
    "nonce": "0xb0143c69d21110560bb90fa75b0e7c428f94d2bbad3c63abf4760149bec91e39",
    "signature": "0x6edc992027d76652a5f419c740df778c4e1ae2ab9365555def26ac4010922a7a534d293d8d4fafffa20bab5fac9033044b35e009a94e3e4453db195f94f8b10b1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}