{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "166209",
    "entityType": "User",
    "nonce": "0x70c1cd3a8e3d59c550dcea2199c2d4c243b13dd7f8d06e4eaab507c762a7c581",
    "signature": "0x1b83d10e9a13daf98f734440f66056821133694be6ee11c87d7db94aae9feb770c2eec935e970548cbcee70375798d5ecf07042399d10c538f6576ffe34eb4e31c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}