{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1464626",
    "entityType": "User",
    "nonce": "0x5c08c47751916efd51823d6bce18cc0f98e28791566b02c7847cad9667470da1",
    "signature": "0x6bdbd7d49eb24a832dc6355e6fb7e61912eb1f2d70ca2aa4d0fefb71e98e59cc567bcb1be332a3dfc36a15dd986f493892d61c1bc72654955f5fab3e948db1001c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}