{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "961910147",
    "entityType": "User",
    "nonce": "0xea84ecc4209bb194cce96b696c65db5fde9abf7369c1a7b52e7e51d050c0490e",
    "signature": "0x8cdb238dcd95a970954bc56775d98bf7a48f9eb02585495523e49630198738d540c250d3c190c48e75482a2f3b6c1f429ee6445e4f1aaf0e016890525e001f9a1c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}