{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x7dc5379b61b7887f6cba72e001b701defc977fca58ebbe3e09bd1019b97f08b9",
    "signature": "0x9e954a8cf0fc476ad6af31245007187f22d18fa13f33df79bcfeae910b1a4ee55e457dc182b8fccae39c2b31292b616df27d517f6e027bba8136f98f1becaa861c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}