{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5642",
    "entityType": "User",
    "nonce": "0xd4ce3f63ae1af63667d251826f7c79bae1d97ca5d9b76f98fe7c93a028a4b271",
    "signature": "0x07db8c47930da3a2c580dc2e3bde98c32a3f5b679782368762851497da9ddf723a8489f2ff69a036158ff34ba744c912d18df4132371ca809a044e314967af811c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}