{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf234dd979d8a9e44d161868971c9282b33d4921c416c79042fc2474a7c7d2b41",
    "signature": "0x8b3a8ce011e9d0cfbb6644bdb14140103a3a5ffe748151c278b0ac9d511c881146157c65b6516c9391f2876413308c802f7cf0644ae7c341e3d9e0aaf7e3119b1c",
    "signer": "0x9838658a9f9f722d1a0C211e56976DAfc350e547",
    "userId": "474820039"
  }
}