{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67b5c4b552f371749602882faae21e1e75f644987b364ec0410bb7748e73d9fe",
    "signature": "0x4adc1f85f81f165986fe63cc525bf585718a0563e21beaa8d0012d6073d9da825d2fee715fbf26372d42575938279290416677b57bdd6dedbc0398b96ab228571b",
    "signer": "0x9Deb5c221A99A81f8d7dCAC0BbB93af4F5741419",
    "userId": "734121574"
  }
}