{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6981",
    "entityType": "User",
    "nonce": "0xd87810b1f4b457940874d2a29bf9cddb21635939461f3a03f6f0d4997f5aed5b",
    "signature": "0xb3060e55ce2f4553563dfcb809a2e5660d0d13e695a0ed0e7c577ba9f0b25efc00154127d423f1fad3f23fb37aa03ef124fc74916f3e0225a6a2756e0abc56c11b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}