{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984215347",
    "entityType": "User",
    "nonce": "0xa4c13ba3aa46b64a4c30f8b1e04e34c2f5ff97dbdcceeda82ac1ad7ba1c9dcb2",
    "signature": "0x6f902431a960cae4b7729dcd8edbc465299e0600183f24e242dae52c914df26f79e62823b8b0a6d02929d95c46f769e35cb35c50c77e522b4213f8133c3b4f661b",
    "signer": "0x1f4676E66f85a00704B84876ae1B19DE3eff1F8F",
    "userId": "965243886"
  }
}