{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xecc3b177ab41891109a76e3a9964a0de2f7c44fbf5f15401fd612cccecc075a7",
    "signature": "0x8eea3ff8ae12555f3ea5ef00ff81deca54689be520c023b147f5c94e2ab5bb984572d504b1e789d72bda5094f41aa5842956f6c01545d4442c5e94517b046c831b",
    "signer": "0x083e7805c2A3a6DC640892099888b4Aeb83E2030",
    "userId": "574551044"
  }
}