{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199053",
    "entityType": "User",
    "nonce": "0xc4f3790f95a51193ce4f903a728a78a8e50c872c7f984f6b2f299453281e1224",
    "signature": "0xea80f93850106f9917f74dc62a36601ee0e501083be91586b9d622fb9f1b426816fb0fb75359708ae9d35274476665b681539572adadc3da087e302b750d56df1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}