{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3c1a62caea580219e1340ad912934e99c3890e400cfe12642c5ab33bde533645",
    "signature": "0xca06b9a04a73646836238fe6f6f4bad7233d941464f3ca70f8fa7f199072f2be7369deb90b3b48f7bbc945f59a48dc9f427b0db0c2c738b40dee873edaea80611b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}