{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "374163",
    "entityType": "User",
    "nonce": "0xbdfa276dd1ce1357730360b8e1b173f8ead81cececff08a2514a433d012e9594",
    "signature": "0xc350eb16807c3bd9c0cd44aeccb83f94763f058a7afbd5d07b19c37ffc507bf4783f72928bf42ea52f9c67eaa551ff8cd39242a142833b4ac7e52a72fe06c2321b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}