{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x042d316c9524d31b1b149b8cd66dacfe99f7095a60da4fdab00afb9e6f7f20d7",
    "signature": "0xe27706e2e7ccec9baf3e777c8d735a72eec206393d695f51c745f540e80bf5ce4abff566e671e7fe9b89839517bdb50b05078535ecc036f4c164e8e41a0363371c",
    "signer": "0x4771D256e7217EB6B247e8cBaFbbCb199424a6b2",
    "userId": "836389559"
  }
}