{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x644cf3d2185d7cc6462f88c6694523a79f938bf541c11f6137683cb204215a19",
    "signature": "0x575c323fe3923bac1520bef39685bcac9818acb7727302b68e9e00776add67f63c8a71aa09cd60f810fe8119b9aed3bb7b5d17a869c154f2ce9cd13b42e7e44e1b",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}