{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "364458",
    "entityType": "User",
    "nonce": "0x2163fdab2d1e06dd677713ce88af5500e3b74e98efc8809febb25be60e168063",
    "signature": "0x1402e6aa10994e00a207f0d9f5255a0c1f0a72b4c8dc69663bfbaf5fbb4199f728edc44f6d349d64fb5cbc2428f1c773cba6698a4c35f6b3c849c23c171ece4e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}