{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137102",
    "entityType": "User",
    "nonce": "0x92b49a674d285348102658050782f013e8ab82945bc2b3f38426450cdf66ea3f",
    "signature": "0xa9228011a5b02c41eba3e41a1eacff03b3df90c67098f001de34fd4f436602e774aba739d72ca716a9bf38130fb2fdb1f3bcfbaf78b437e3a3032fde3cbb0a671c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}