{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x989c4251d8b2d80be7769a9fbc878d681ea3ab5b30509fc64ad6b19a3ee46921",
    "signature": "0x31748bd6aefa0e6d773d271a8d00ea4020379870f398106d63934432c38d9e162a6026e2fda9150c0e18ce7ab78e031e6ebde8d07ec7b7919a8bd60716e77d781b",
    "signer": "0x30F06DFdCa35Bb8B2d6ea92Caa28aB89441b5c1e",
    "userId": "812448115"
  }
}