{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "283342965",
    "entityType": "User",
    "nonce": "0xe61d3e195c6a9a3de5ede5191259a71dce7d08e8fb8ec3525180c025847cd967",
    "signature": "0xbc15a698428e28b34503b1f05ac28cea0ad66b8b3acaf7cbc8472632f3b3ed2d0c28d4e459b9070a483d0f56f1ee985b73415c432561c51fb2c389be45db0af31b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}