{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735650",
    "entityType": "User",
    "nonce": "0x73f802ed1e4ad72ce23c8eae9f269f66cae82f9bf1191dab3b4b7280912a5f00",
    "signature": "0xf03ff51de005d3f3043d364ef7086b59284390e98287e83eee2532513ee9c1a06fe460b2cfb1826825e09170cee43475c495c93f34c5c00e81d1ffc32ef05faf1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}