{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "617072743",
    "entityType": "User",
    "nonce": "0x29a09bd5ff0413f797cfafcbf8e072650c339385afa6970d73492af0bd96be8a",
    "signature": "0x1d59e64e7cf24c02264eaf94b1eb269a1287e73a6f53ccd3308ef6f6361fbc2f17328873e7fda3209a9a329993ead71974947be2ec115ad97db8debbcc8d16791b",
    "signer": "0xC1598Cc966Bd02C29998427F7774ba9C3f3c5Fea",
    "userId": "19011"
  }
}