{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x699d9d3a465c2c91d936989eba8ab995e8a8a3e65c88e2c0e7aaa8d9129db8cd",
    "signature": "0x4b9e3392fd6e66bc6da5e638b0e23fcdc9c3f1ce8e5550fe79f9e9084a02b424226050bf306ce09f411baa375c3a3a6e10980325d34e37a90936913caea52a411c",
    "signer": "0x704b735698b4AD6E9E2136A2BC9C2385B38148c1",
    "userId": "635918520"
  }
}