{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe8d6e727d0029fe0d8d3cb2cabf2bbda911084844788f81b4c4ad30103fed6a3",
    "signature": "0x68a320631cef99c25af1eb57d0a5dcebc94a9259800228b394bb73f322ad744c7482f720075588bdbd0ed7d2fcace0ca886f3e9ce256f7cf0aabc5cee84531501b",
    "signer": "0x335b8cFbf49f09F41aFf9BF281FC4fA179574606",
    "userId": "274103904"
  }
}