{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9a44ba6e36650fbba0eb3fcb40cb485b7f6967b132f98b7db4f164cffc2c57b4",
    "signature": "0xa15581b4c6f9932c2feba97038ae1cde14fe97a5c642f161aefd4b7ff177277a38a8fd8c25e1f16ae39c48f4cd9a79a730e158b686ffba5ed5e0dac16c00ecaf1b",
    "signer": "0x95a6e39bC5066e7d349a1668ea62A02e4A0b7645",
    "userId": "426302807"
  }
}