{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923551697",
    "entityType": "User",
    "nonce": "0x673906396a08f829cdf608d6e9bda79d5a3cc7f5143f5a43a9e006cb3f86cb73",
    "signature": "0x0e3c4c2ddddc374a5b38bee33067fe320f64fbddc700f49d4b357e89386840e922757f5c6cef6ab7684f6a1a33c7057cb30de42bf62a847074ac0f0d2102b7431c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}