{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139298",
    "entityType": "User",
    "nonce": "0xbbc0c1f503a6057ea6d105af61053f8234c0bdcf50a9ae073d0daeaca0650556",
    "signature": "0x9e8f4bb64463a8465996a600cba573255866bed62825d28a1d1453e07a7bd65a245eb0884f728a932cfac12a4318710232ed8f934e4e69c1af46c598685c2c6a1c",
    "signer": "0xa58AA339b950270133c3B8922332c51010c526FD",
    "userId": "560903827"
  }
}