{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0xec1113e201aa00a1fc30700166e2e63d08fe2cd3188b7a0bb7b298dbf2f43963",
    "signature": "0x63be5c07d7552f1618a28554a4dc5defdf7522cc8dfc140b19b611026974c8927d195a10f8020e6e5b28417e710295a7e6e7c3b0412ccf7f95e3fbf16d9298641b",
    "signer": "0x1D0c500EC847246923045cB0a285242A93723f30",
    "userId": "302385956"
  }
}