{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "181667722",
    "entityType": "User",
    "nonce": "0x3b84f3eba2215bb3d63d8f7b7e1d5b9273b32673bc7379da11af090ab59bcc9c",
    "signature": "0xd80739600a75b338e2245b08086696399bbc9346b079cb131029bdf9e997e0970606bed68213cfdda69796cb7d39058e482447740aaf5d0b0a33df4fee9ea6e01c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}