{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "407339",
    "entityType": "User",
    "nonce": "0xb3de9cfdf05611afeec2b749b2717eff1c91e2a6e945cdba117d7a2ae44e936b",
    "signature": "0x7a36167099d70c03a537b592569011bb69d414939edf69609a2dde1f8bf356e351cf97ca581c5d361dd355418fc1b19accedea2f0f9f275f81599b090786dc6a1b",
    "signer": "0x745895918A1926af8a7B4C34Af51BdF98bf5C7C8",
    "userId": "54958731"
  }
}