{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66994",
    "entityType": "User",
    "nonce": "0x4c0eab4f5f8b456411f0660be5fae92687eeaf451c592085670960df93a6bab3",
    "signature": "0x72ad70eeb393aa19dfe211e1e02a36073ccdf85418d1d4ac439af79d712451b2476ee0fc795896881243e9d8e3dbe67195de1abb290a20070839daa2b35c4b341c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}