{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906913",
    "entityType": "User",
    "nonce": "0xe75def17747f921f72231d5e4c2747f6f678247a70403f470d627600af2d988a",
    "signature": "0x595feea6ffec0edd9428045c8e4f214045e5d5d0d6657ad722537d6cf8e2b06f7d8f9391da720c75cb2443daf62ff0d4f5bf3d2376bd62693fd65c02012254731c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}