{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0xe1fc6ddc4bdfc6661026e1e63336ee13993f6a21a2a52a0ec9e4b92ef1679df7",
    "signature": "0xd0c03ff11343f72f36fd08a9ec8c1e1be0500eb811c46d7da9cd09fe15c37a1d7b8f6d235572fa2b87c81073988a6e2ea2600d304f33c083d90dd445172946c71c",
    "signer": "0x858Be7885D181415aF81b736714608bbff4936d2",
    "userId": "357460890"
  }
}