{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2154",
    "entityType": "User",
    "nonce": "0x0c1b6f33d0166fd3d02af4ffa5472775217e39a0505381f87363619c72415c0c",
    "signature": "0xbbcceafcfb5c9e7b156ebf47c322b669b676432b1b81d3f7977c8f4c450284a141e6f2dc953b83c4604af63ee006539ec86b8f2cc66a83f4783ba54ce5c82b6a1b",
    "signer": "0x9BaE2e1849D39772019b4AC3468e938a232f73ee",
    "userId": "948584098"
  }
}