{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288137",
    "entityType": "User",
    "nonce": "0xb5bbe93e7299e8a82b83b4c381fac0745a91ca089113555dbc1420dc023f00dc",
    "signature": "0x774d30dd46a3c03f3afb3e4215db1f385b37d3de6e2316c293d355a37c097b55192fc0af861cfa9c45aee58808de2db22d12a70c13bedc64405bb6ccc23fffd41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}