{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "29902",
    "entityType": "User",
    "nonce": "0x9eec1a852837547e3fb5935d76c61d2bcaa0d0e4f1545b68279d77d556cb40d8",
    "signature": "0xb3b5a7a73ea2170d2f8a9cd719309053d638dcd200b15fc21fff9ca145738e497f2fb94ab8b8f43e88d20de562cd316320b43bcff427f2b693a6645dd39927241b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}