{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x33dcb1d600602dbacab3d5d5364605eb3cbfabdaff0925dab32d36ca635fbc2f",
    "signature": "0x090205b67d0a8cc3447e09485ce22dc07814c2fbe771a1041569b73d5782d50c7496acb0d6d7fe68f94a9892dbfd4f703898759a643768d6fcd624e4fecca9001b",
    "signer": "0x89d83Bb2BF0C1Ad6B0dB1DE16DA35a110Ae37a6C",
    "userId": "871535685"
  }
}