{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "892407125",
    "entityType": "User",
    "nonce": "0xa8e719eec7303d8862535fb5e68b9f7883d9f0fb32b89dee4e3ccb76050ad582",
    "signature": "0x6b599b3f31e42dd2984dcb2542a6e0576bdc2ee423fb5ebe503850577bc4fb20622493e8126c4c236a729ff7d1c07a1957a7b7090dadd7b6323995f649be85561b",
    "signer": "0xb90dea25446900B58b936FB95262D7557e6115B7",
    "userId": "559908939"
  }
}