{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "641892598",
    "entityType": "User",
    "nonce": "0xc5aabf9237a11fd5c364b0f328cfea12d2b56820596e6fcb9d0ceff2f5c7b8ec",
    "signature": "0x5a44288b1758671d073d84715d021a9f43b066032a6af00f34a6f544c159c8643ac2369eccd87a52bbbaef88ffb67cc616f0c486b58fde5ce2dfe4f99952b53f1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}