{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "71508",
    "entityType": "User",
    "nonce": "0x8b1b562262b31f9230ed37379e9c8902824a536e86d079ea7142b794dde1ba51",
    "signature": "0x533ddb777ea142f46e029b0f5dfe356c43a0b45d4e931b0d289fb7c8c5e689b251e77203c182a235d5903b2d59ff0c438ccc27e1574c447fa1a676a9d4fbf4501c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}