{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157010",
    "entityType": "User",
    "nonce": "0x0640beb41e5d6cef9d3ef15aed2b4f445a6ed5f665ab47a477db98281e3c4d66",
    "signature": "0xba27bde4afb2807412b0393a85949f0c9d36cab246443a02990785ec2381464637d382f5250e42f3aa4f6011816e82a8e28314897eda7fe9373fedb5b5343d741c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}