{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4057",
    "entityType": "User",
    "nonce": "0xebdab8c5a46eea6959eb24378b49d3328de8ae63b9569b4511d776c328c0e3b9",
    "signature": "0x584d37b4209db2d5aa5168efdf3cae33fe60b5963430dde6bc96a9246fe273512fe21dd05dcc930e7ac5f6b6879702804440ef1bf90635359bf5baf41ad1b7b81c",
    "signer": "0x8097f7562D3D2F9cbdBA391c45c0D376E438625d",
    "userId": "51978829"
  }
}