{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41984",
    "entityType": "User",
    "nonce": "0x33355c8fcfef1b46a9a56c01cbfd402215776859daf6ba48f7325520f18f90fe",
    "signature": "0x67ba0ee0ce49864e23409ec6de5e20b51dc95975bc4450db84fdb55bf7f2306b0e07a8c99cd219b0aca356b83c69c6c5160de548959c23ca301c683432c5560d1c",
    "signer": "0x4Ff77Da6D5C7286ea15F7F94FdCC04a641dE9a27",
    "userId": "512734349"
  }
}