{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1fcfbd7da7a4dc6656925462445ddba80912b0d25412bc4081342756abc2f96a",
    "signature": "0xd0c803c9d5666cb8a365d0266170d4811a0f08e89cf1f56b23f2f6b25216efe80059d221eb4633545d6903bd37c1d3baf1d50d6aa0fe0add143c2c82adb42f761b",
    "signer": "0x0B7CdD3c765101cf8e4ebc0A820095DdF6d79896",
    "userId": "740756901"
  }
}