{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77613",
    "entityType": "User",
    "nonce": "0xb1d60ea612be78b5112dd6b49a2a29729f3d80f13c17ee05c75ff6ec42fdfb92",
    "signature": "0xdbc4038ebce190d69969e6ce3adade4d3f4c315ff1776e0429017e35f4b55530097fd8f46c7b1ab433a9d97b830da33162f1dcebeb06c2160d690347c21a15f91b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}