{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x45b1483089e525e6efdbb50780c66978ba3f58d9171bd28e4f2bd83a14a99631",
    "signature": "0xd9aca950814fa2e6856cdec853705273cc8ff4fb2e00a13c24a6ebcdb120c1012d85b4b9538c14b3e6bac93e103d3671b7394c6cedef269b0d7595bab1b65a111c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}