{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54120",
    "entityType": "User",
    "nonce": "0x09fa5980cb4fdb91347edd64f4d825fb75b37ba89a5756bd0c66cd998b8700c9",
    "signature": "0xdc47438b8d11341007323eb393ee180aa2563f6427ebc4d1a593b8090e3740a3052504cf6cc459fcad67fb5cb5efc7bc799a30daca4be31c2f6d3e2faec059971b",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}