{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaa6161929070c5cda842329d2317665db02c03d5aef6a453867bd7a19f726c48",
    "signature": "0xc4203b0c9217d55c88fcc1b10f22c1e18943f2c8d35abcd9e6b794009bddeb3b119107ae85d11d1ea4c67cd5cf9828b0ef0a93dd6a1a2181283c5ad22aa8f95e1b",
    "signer": "0x3B5e1d06C494aE092c67f3BD70A9175aFbD0732C",
    "userId": "340970206"
  }
}