{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120328011",
    "entityType": "User",
    "nonce": "0x7e54b8747808ec9d6020c42ddcc87fd584f5b86b8369731490e678ffe2a37477",
    "signature": "0xd2b658a75c0de1d01dab4018f20e6a0c4f63f7001432dfd1f331dc9fba207a533cc863e2ecc6a70f190e1fbcaaa18bf33c4166554a978528a06fac9772b88d5d1b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}