{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "63643",
    "entityType": "User",
    "nonce": "0xa1220aa3161d9f00aeee8a85af730667ef7be0330fddfe887228bbd136aae1a1",
    "signature": "0xdbfaa0a0d6f4a868859f5de4513b4755ef84223cbc65f2bce66d56350b1da8fb6846f3263505000197befd5d46418a39bc9c54a278e46ba7473b28a496574f811c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}