{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1088310",
    "entityType": "User",
    "nonce": "0x2a87a689d244c892ccd8f8a570ed4227257e85551c4a4cd7ceb54e7f2ef837ea",
    "signature": "0xf3a921e2857feab480649ec46984dbf67a3ee281f6ee3894ae79fc878baf4f1a1fe2393f5ab35407ac4d2c2d576df9b166f278ae27e7553858bac9efa72436af1b",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}