{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142317",
    "entityType": "User",
    "nonce": "0xc660324bcc9f0a3551d8549f044e6da1c88a5dde4e5e183e4136c3fe2efa68b7",
    "signature": "0xd16f33abb0c058f5e48357bbd5474319eb0c9bcf3eed1ecd7b971a2184690f4c4a4a4df1907b3df0d324e1eed2f64cf4f05cd12c05bdc01460c627ad3f0f5eab1b",
    "signer": "0x766Ba5816f1Cbcd9649d3b301b8F423CFF252fdb",
    "userId": "758745"
  }
}