{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "525853819",
    "entityType": "User",
    "nonce": "0x2fc7438dd8fae36dc986e08280563f2915c4802fbc5025c4edecab6327d26510",
    "signature": "0x46840e8d1765951a3eea3ae8f2980286aeaa00f71626e2d576b39084c5fd2f625b6a8d032144d1d8b884159b910a0ad8c3134fae2841a14bab6c189ddcc8a5ee1c",
    "signer": "0x69DAeaBa091F0b0C82B0f54E9a01853b9fB11369",
    "userId": "306102391"
  }
}