{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1028",
    "entityType": "User",
    "nonce": "0x1b6f8080689465ea7b29b17c19ac427209eb30418dffd64c9190a71d50875d80",
    "signature": "0x7f7385107b1025f79262ff2efbb3d0f4a9a4f42593aa6537a969604ad2ad82b46f3952d3fc12417902ec800c3eb63076994d02c45adac8bf2ea7e8a30b1c42e71c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}