{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77401",
    "entityType": "User",
    "nonce": "0x7530580513069783248d4f0d8f29805e6307f39477fe6b18cdb75fa222b83ebd",
    "signature": "0x5ee660263fedd14e92320365434360d032f728b570cb347ec4d5b2a1b3046fa76fee5940d38d063606653af60529e0ca0805fee5c37f3b8804add48248cd781d1c",
    "signer": "0x764341232AB28643e8106bCF183A4cCc2fFfa6c3",
    "userId": "67250118"
  }
}