{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "752918",
    "entityType": "User",
    "nonce": "0x58ee09266d27d708e18a24364cc5f8352e5970ea5a01d61d00d7e0f095a77c2a",
    "signature": "0x35ede5bc4f74be9405f328584e1a6c31bbeb7c0685050dc8c0fc798766be2b1356cbfbc9240228479f6f575dc9020b9a5bcb99c56e0a0a3832e7565c77c1fb431c",
    "signer": "0xE726D55D6940a70995Ce9D8aa1aCE76FC6f4f544",
    "userId": "285113781"
  }
}