{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe0aa01c4fca8e31034c8836416e927ab0f3a83372c8758b46b600b7d75093746",
    "signature": "0x66b5a5887da9b6f7ca3cd91e1116b8abf0430807efd48f250428adabb4eefd783bffa6b3ac1207af10ec2a74520c4e4f5977eadd6a1fc08816e6b811a2d61d311b",
    "signer": "0xf6eca2c1CDE9e52553c4636a5999b354714F0493",
    "userId": "574972460"
  }
}