{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164551",
    "entityType": "User",
    "nonce": "0x7fc0e343870e9399d5e47cf01f6591a2ee2f4d8242216ff0de9741b8313d205b",
    "signature": "0xae8e6b7dd151b1e8be1eb34b9d96e6b84f8e48e6434707be5f32c67890339fbf3aa03f4ac5666fd68f671b2cbc8276ed87e401cb32a74ce7148ce3e9497321661b",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}