{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334539",
    "entityType": "User",
    "nonce": "0xb82e7068362401780839a26ceeacefedc38e26f40a2ce78a29e5657d34bf2a68",
    "signature": "0x60eb563dc990ff588aec4e7901fd4b30db485b64006f5d9f7522c767eeb1165d14e9714f5d401de8278bb28d2253a2f6ca1b872ddae3b0283754ad122d7bf4af1b",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}