{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387491",
    "entityType": "User",
    "nonce": "0x58d6b6c52a8853d1677bb1af7d08c233883d3df2977872f4aeb469b6513a8fc8",
    "signature": "0x9f79b19f6a99a05335029007f26f6689f24f3de198e6113373e2a0ad6079f6be79a92ac62952a19bdd078916a482d0ead0ff790e03ce1b62762a3f17a786bf4a1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}