{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd2a2ac87df1b672c54231e7ba15b9c786bb32ebc095beb77f028989cfd51df1c",
    "signature": "0x364e1f04a8adfb07ae1a889f26bbe94829793949c2fb3b2ac9ce99ec1071222650c80d6861348db51a5f663e344ff26d8e2c1351a9f7c53fd03a84c0151a38231b",
    "signer": "0x7c9eeADD59fb6214e81cD9555b456F0F1F5d1fF6",
    "userId": "561696502"
  }
}