{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "260829",
    "entityType": "User",
    "nonce": "0xb8f30c6ad32732eecbe1174557d2f3b8b0fb7e0983415bfbe503fe112a43d77c",
    "signature": "0x755911b688caeea07dd491af11a07f918bef71c8db52f4293526ed204ef7a99a02e8a65e6cbf3a901940260cc8ab0086135b36e8e513deda98e6a9670d36685d1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}