{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf13e354970dec5e3dc3ee2d52aae72b6e198b56854d2d566f09d4cc6f4b5beb7",
    "signature": "0xbb7fdebdb2abddd84da13f249c078e323cde1d8fc0b50f6037f13cef2f1bd82a5de983e65f5ac85d6f2ba56bb015c260bd9f5024f215cf33f68b7f830da248641c",
    "signer": "0x584af568959cbfE3938a06FaC2926eB0A92a70f4",
    "userId": "650892648"
  }
}