{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0xa94e8861eb1133aef41602c1e2e3c9559fb3a60e4ddb3d684c02d7c50be753f3",
    "signature": "0xedae448914befc454776eb79b094eb343b10c2d6762434d9667eae012c1b1b11249fb52e6cf1dac03b15e2fee68f30dbdf8329dc962f8aea12b4ebcb7c3582c51b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}