{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x9edb441c02088af427dd69ed50f1b5a39d254dea687afb0be7e392e35b08d52c",
    "signature": "0xc1c3ba1b3b798af48b2098ba99a3ff927ca12af71c3701183f36492ab294661c78bff4b04f744f3a6b52c4a9218be7f3df6d89369d9c5131d72c0cd0375c44591b",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}