{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "232777",
    "entityType": "User",
    "nonce": "0x600aafe8055a447f1003f73af87681723caf947aca6aa54c7549e3ddd56fb90b",
    "signature": "0x42478d20dff2d2b398a61e03f188ce2d191f6a7db965c49d671d6f95fad6eaeb55b821d46c96d6484e7f5e45bfe52bdfa2baaba45b82af324c977c961e141aa31c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}