{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64866",
    "entityType": "User",
    "nonce": "0x2796d0d1c162e68873a699c8dfee21293a9baa2884d17bd7066c1a96a6968c8d",
    "signature": "0x81f02e1e6934ecbef2a9d1cea4f6a5675ac9fe0f07b7763f6db46e8836ea3ab85b70f8f7e5de6d2f50b579a786b5fba7b6e9479400f05a451911338f5d7a92461b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}