{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43388",
    "entityType": "User",
    "nonce": "0xcc734087baef438de5d27738e396417337e7589e81cf97f5fa9b6fefa531f06d",
    "signature": "0x17adfbdbea8e11a7df5b35e35b1e3cde4273a19785989ebbc45672b1deca7516766d16591cac0e10f767b6331d3bf8e59f898e90503a84a17ead44054fa1b7001b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}