{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf3c4952d8cff8422a11e65bb9f33f3d42fb58cb7c89b6e636b0f0b9ac835bbd9",
    "signature": "0x810136f4108eddec8e5315e019079855d2657feaabea3fb13a132e5e2354235a0e096423c71ce40fee46e68797b2a6a94c2f154fe7bcee47d66d5cc227a6aa821b",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}