{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218333426",
    "entityType": "User",
    "nonce": "0x4a8f36ae84bd484dc2803cd54ad8b719399899d5decf567cf9a8f75771c4d778",
    "signature": "0x669c1295438d2e9690afcdccd8f8168fed455ca8d76c914e066ee6acfa33865d5040ae2f54eb29d60e79bd6c02429405f9e5952511aabcbc438c9bada940a7de1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}