{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0xc3a86698ab39abec81ed865087e366ca3b9b553f1192c35b5acfc22628f3b5ae",
    "signature": "0x0042bb0fb4fec88748873629ba8d9cdb54ab38985a4b38e79d4918a10a960aae147bc1eb6a7b75b3bb2cbcac4316e0a1a6b6ff2ea514a2fc5358a7cc197d72bd1c",
    "signer": "0xdA0eFB0e7b973C487c12501759aDb23012CB5248",
    "userId": "178070"
  }
}