{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "134943",
    "entityType": "User",
    "nonce": "0xffe0e3a617352c4c89074db2b96a9eb8866921462b6b16a7ae8a57f7b7419f9d",
    "signature": "0x0e37d076f1d1f03cab8be6cddcf0f6174e5b285f0109d3154233e9c9f7ded40a627e11611ed932acc139f6b34ef76dbe9c6746795f2e7a76828d3848b76203ba1b",
    "signer": "0x6818B889bFEAe14D2ADdaC4dBF0eAe75779d7Ac4",
    "userId": "341292657"
  }
}