{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0xe5ae0fca1a7097dd685e75fc0e441d3f195bf91eea3697c7829421eebad746f0",
    "signature": "0x64d9b6e57447c4f38589d90b60b6f073cda10020e006c1662c13cfcc893041f635689839e64a295558ae1ef64ebfa991f4b8009360d61f967638ed2f8f7c2f751c",
    "signer": "0x12302E88Cf971407d5bdd167b1AA2664556D3385",
    "userId": "68176371"
  }
}