{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77084572",
    "entityType": "User",
    "nonce": "0xb6b8ce367e2272ca1fac7660e0533a906f6319e511464181db283516cb7a09f0",
    "signature": "0xb57b9410047e002201573180ab57aeb543129bf42ddfc40418d97a11813e640e0e906188b70e7d5c19ebd8ed3a49bd3e5870f86ba465298285efd8769b0127b71c",
    "signer": "0x1F9dC682fadBAc94c0Dd4ca2232a3f490704a737",
    "userId": "737872723"
  }
}