{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334323",
    "entityType": "User",
    "nonce": "0x074efdb2656131a5ca63935e27e7864dcb5bd9c9de123599cf0a54f9f8a401bb",
    "signature": "0x3c6066f310d93dcdc242b92be08c2a7d043b90e0fc14516395dec19b6b94bb0c1bd2964192d19ad123bef39117409538c6f61e83d583d989c25a4438765d08c41c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}