{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335217",
    "entityType": "User",
    "nonce": "0x0e9fc597abedfb174e9e49418e1ce37ba9ddcaeba8202e14c7ecf569cbccf51f",
    "signature": "0x6bcd4cd9f2fdc9ce4672ac2a5b7d1e4569c572e1a27f90ea13f0ecc12b9316982adf03cfb02c9616faf3d67a6427c9fc5dd0b37d13fa1e4daf0164948464c2041c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}