{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0xda389cbb6088b4230cec20cdb124938bb4a35781b9d6531c4a0267b51635e1f3",
    "signature": "0xed3ce17de71db151f8e992d34dedc4ad7d7efdedd66a98b927ee20c762f3a176751a63c7b2d1e23489cd744da5e99a3220c49fb553005c8b15439528a5c33e6a1b",
    "signer": "0xA27B00F57fC7B3E81c4d7C4919aCec97E1fCf667",
    "userId": "329513359"
  }
}