{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb7913bf18ba5ab2ad6664c630c1ec9edfdc1d19bdb2bf863d977dbe4545e9eee",
    "signature": "0xcb86b2256de3dad36b1477ade50f8d3436a21a285c14fdd43cd6bd332914bcd24fc6fcfa14ff03268a0bac36aa04f052e81fa395f089337e22791b1df9216e311c",
    "signer": "0x12F25F58Cb34d6df58d2e1E6f81153193f1da01c",
    "userId": "262120414"
  }
}