{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "885126464",
    "entityType": "User",
    "nonce": "0x4e3f1e18eef1ee6e5bc360a5b09fac92680044306526337121e87d07afe3c4fa",
    "signature": "0xdb4f6ffefc4b3141e0fbd6f5d4bbb6415d121e609fec73c106fe1c498b497dc45dc8e5e856fd7c9aa70e234b8c14b68e35a7631afba30a2f45f97ab7af45fd901b",
    "signer": "0xE7A4a8f1d081B44C96Ed68610B6c3016ce8cD6E0",
    "userId": "464427506"
  }
}