{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "436274",
    "entityType": "User",
    "nonce": "0x201de20eec2999337c75dae7f7fc25a640fdb5078cef96f6d0ea69b4ad3a1e6a",
    "signature": "0x85007643c7f240a7769f8df7a2e24db888105a80ce590204c8a8f407833be48c29b1f469324526a136197463b22d9d931a7c1243444d9dcaf53228c8c3f4a31c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}