{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe06928d017bc31eb4a3d28f68c1c8b071036e93c6feed30ecb49cf0302001175",
    "signature": "0x0705b11bc4df39d31171c60fbba8307cffc86511776d4494a4b661ef2aa01e0e7e992ae7dc2eb87ba5a842b3a154b6769daa5f43842d86a7ffea198dec246aa51b",
    "signer": "0x3F5455af580e6d6e6C362D122a75Bd016C8D1c47",
    "userId": "569769071"
  }
}