{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107608",
    "entityType": "User",
    "nonce": "0x6d6166ba112b4abc487a37fd4b54dc89014f58e5ca7d5caa4ea69cb970002f8e",
    "signature": "0xf2cdfc01ae91014ac67980eec7cec2d85217e9b4b2aa69f32a669f6108814f014fc5455c35d3ee9ae92804530f197d94e43ccf683a8b9aad197f3d84475e7dff1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}