{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x25ee132c97d68ac6127d47dd364cb7c5877b1ab505e9c49d1021042a62176551",
    "signature": "0x56e23630a4844e6f243434a9c342da005b9d326b5f8177d16a12f42662b0e01b58daaf08ff60faf2d9b337bec0eca70c3d82688ce1cdda66f49eacde573c03341c",
    "signer": "0x7951f176B5389b0d3a6822d7e0F9286feA14ee7a",
    "userId": "867251596"
  }
}