{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387949683",
    "entityType": "User",
    "nonce": "0x2a7dcb90e4c605e4428ce733c3d9afb33ee51c7ae6edbd8d8a35aa3cac270c60",
    "signature": "0x1894c4a106ac17221037ac4cce8ae257b38c13c4ea9db9c99d505850d377e74217351768a0ecf5ed596cf7d07506e9180f6c8f7208e0f8f21f3214c3f59d5bba1c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}