{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xf70378159f749c09b2bf6db5f7a3588be86b14f31ae9a8343c81a53d406890aa",
    "signature": "0x5bffbe2b2d7a663f884e6573665bfa899f6cdeb7e7386b7c25674e3d9a3a7acc16839b83395d01a38fb0392f27c6774bf2c980750f415e174f0d50dac13bd4701c",
    "signer": "0x1d213Bf7d1685E6C9e8589d81f7Fe642877f8EA4",
    "userId": "707945177"
  }
}