{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57845",
    "entityType": "User",
    "nonce": "0xd4934ff3f06e50e2422bd86fbbd7860adb0e1df98d89f1fa1ee1a04a649362a1",
    "signature": "0x10e6d03d9fb9a187dc90a251406a8f3ac8115d8bb556e16b11ccbe25e874f7de274bf34e4298402b20ccd4fe8f3f6b5fadcb4432d66cf89ca1a92187b94965d81b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}