{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda86458ccca6e8e9c55592b41436bd5d15d09ba9b3e30e68bf8443d804a3df8f",
    "signature": "0xd67ec1b45ff5d3300844bc99db29c4f896a503d13472ae9a6c344c5ef03e834d065169bb6fd49804792e75b6db8f91f42938668114eb9d54a1f584e4f4a716211b",
    "signer": "0x6DA76e5E48cd29CEAfe1E303Cd43195dDe517fAd",
    "userId": "8672006"
  }
}