{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb438d76c9fc79cb2fbe1ecab27c25251395fc7a973007e926b3f288b7c395e63",
    "signature": "0xe18ea0a10d1a6c86bf00e8c2078d197dbc8beb58e181866c660672debc85ecf162de8388367ed7ae167bc741018e1f7568cabb6d9489c8fd477ecc9a64c4c8021c",
    "signer": "0x01965c6FF7251e5cBc32D192074e36cBF826eb6b",
    "userId": "438962506"
  }
}