{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x29730da657e6febda4d7414cc43297bb2477764dba658fb8ea6c2a7e6e27e341",
    "signature": "0x7f5bdb47533da85c453d28fd9ae9977f657f93f53ec37425d608a2d3a646a06f761b23a26989efb630e726d10f5c3b0e972101461034ffccef735c27836f3e5e1b",
    "signer": "0xDaB063e2eA8b5fE5C0Ed7223E3ae78f65634Bd2D",
    "userId": "280447001"
  }
}