{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd95f922a9d20eb17159b89be6b30b68ecb3c343ff52e1f8d0941739fdc4f9318",
    "signature": "0x704cbfd4592d2c5148e2d8c7ed9c367eb72526916df03bcc6176c103da9c3e5c5a73bfce2725f356377ad481be71f8c327132b73387a5054c7aef923d72a7f861c",
    "signer": "0xDfBA410697477D4aFf5e29417a660EF7DE47D640",
    "userId": "516393482"
  }
}