{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "170302",
    "entityType": "User",
    "nonce": "0x83382fb5b9fa6177a6fd9bf11fa0706d487c1dc3d1adf7ca5c91b1c55235c634",
    "signature": "0x4e9eb76626d9484b0792b691a51d86b4c749e2447f9136ea5bdd2b426b7c120734d4da2823ec26a418deb3b70ea352d8cce912c1f9007a6506860292dc9bac231c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}