{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183855",
    "entityType": "User",
    "nonce": "0xc537cc9b9c98c90266bc8c158fc7fae527f0fea89e29a2a43bfabc06281be913",
    "signature": "0xab19941523d44f10c1c848c35fee7bc8e71c598c1848bd7accbd05e61ebcec14223a800a5f25091cd07252eb5531fa63c38f3727546ef76f9dff61bd0e88d3b61c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}