{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7477",
    "entityType": "User",
    "nonce": "0x32ae85adc98a708608b61618f5c575789a2f3e28e4ecf7d126572e74b39a3288",
    "signature": "0xd4b5a9d3adf937fc7905210e195c76190b204ac16e0d59497cfabcd2980618c17373f191079206a28d31fec824e3d8882b6c6de4bbd4cea1a6e05f7f7cfa05711b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}