{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2c3915ddce08c52280c091de445f144dc824b01e620c2bf9089058adcef8f2a7",
    "signature": "0x2fbd12d8ffd1cb915cb00cade9e1d616810f51736eba58b2e239a05eba58e60243c1c2686b40ebfef7e4837b294520067fc7c9fab0478eaa957f658bf957383d1b",
    "signer": "0xc8b59C26109BC380ABC47eBad3DF1FB7d6aBf13C",
    "userId": "37821039"
  }
}