{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "268876975",
    "entityType": "User",
    "nonce": "0xe9819d535737b33b4d0d22c26fbd3ec328a106ebc0adea73a89bd4b513a0ca93",
    "signature": "0x4d900b288d4d558b07a4fd74cecf2300da61278e008b1e0b58eec5985ab5101900bf441c7c29888041c99affeac87a0fc839bb2142ace280a34fcee3eaa2dda61c",
    "signer": "0x98fC2b30E6e70e62dB2b5fAE7b0292DE3D4323Bf",
    "userId": "480962013"
  }
}