{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc95793fbc9f135e6f12fb623d7be578c9f12d6d1478163a9c4337dc564769726",
    "signature": "0x8c00072a2daf7fe325af8502e8ccb72c161fcafa6e218fd9ccd4f976f3720454077d8b84c478373ddfc52925046703f9ed3eae4abfd14443dab11406a45fa3221c",
    "signer": "0x56d1dcA7D6581714e2ea3D694DA19934386c7256",
    "userId": "598133840"
  }
}