{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0x4d04a3f4cff939385080360ab4b95bed19a5b8011e1ff988888defd39350b40c",
    "signature": "0x699b207a0292b7b0630d00fe948031867b04cc04ad8390abd91446b807c3fd111e4b6e5e639cb4b8ab0543ac9ac535bd2a1589eb4da17d859c76a9d0a822488f1b",
    "signer": "0x3CEbf9bfE1b24355cBC348701860d601E226Dfbb",
    "userId": "172240066"
  }
}