{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "935951419",
    "entityType": "User",
    "nonce": "0x39d7d8aea6ac421187013e635418f8617166c028c00f1bbb3886604459d84a21",
    "signature": "0xd723ad7b05284eb2fb0eca4addb68a42cb9876da3db7d0086e3e661f8cc6c7ed0f64f07d9d9acd281b91c67cb12e25c0f4c85e0e297d7e7d4306c17c87a520421c",
    "signer": "0xE7C356e43964Fb08707CA8480B5B5ceF0080fF53",
    "userId": "576563883"
  }
}