{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "261999",
    "entityType": "User",
    "nonce": "0xe0b64d735387fec82a2fe83c38939524c4472e672b87f760bbfe78592478281f",
    "signature": "0x768269515ec77d600ca6cdfb4fd98e7a2bffe8b26c756ce2aafa1cfc268b901a0407c107962d0406f18c1bf5921076bb029d99c4b83b0e3cab3e0d444b93f00a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}