{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x30d415887136f9f66c4e3e84bb05e4695527e9b38af214acb93a927a886aacf4",
    "signature": "0xdf5ba8e269cc4bca7c35bc697b12686d02fe1cdf9fb2143e9353f88f114d3f8d18dfe8affa038d63464d32a7885d790a82aaa6f46fea7f7e72ec1e31ffb02b301c",
    "signer": "0x2Cf3a39A4Ba52d2E63E831AbEcaF6C2628690d44",
    "userId": "936169398"
  }
}