{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x9125761e33dc2a611add6a2bae7469d3816708ac97db91a7e49690e375ef1186",
    "signature": "0x4811f66e1d36bfed863f3b4cd8fd308580690de19ede0fa6d720c20ce2b7f55e12015d55b8a8180f782c25e1a6d1816e1d0f190afb94c00c36864fa7f42b33fa1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}