{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "945653761",
    "entityType": "User",
    "nonce": "0x212d63bcaf72152500c1e4e17ec68343a9181f742c82f0d9fb846198094b0426",
    "signature": "0x4bef411400651f83b301e9e9fd21c221d60b2c7e01df8731e14ec45c91b328b76bca82430da96f17ac3583f72fa552aa8943424d2f54a3d0d795202dc125d7d91c",
    "signer": "0x720537125Aa4b451266209E0d508D7576a4bAF94",
    "userId": "942771296"
  }
}