{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "152427",
    "entityType": "User",
    "nonce": "0xfd05e22a942070a13697fb1f14f1b043678d5f0ebac8fd067071f40c6a43bd2b",
    "signature": "0xe858b71d1bc58c00212ce63a69d148be57ade2a349a25f6404105f8bad547e4b4c698e6a9484e9910924b278e7c107498b3d74b09a95dbf33cc3da378e9fc0a71c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}