{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf74421cc470bbfb83094b9f8e8a1a7ab2f9c4fd3df33df98f5d277c44bbdbc82",
    "signature": "0x4430c9549d06407322f6acdd0ea37afbfe91811e980ed3d6578fea19eb9848e5616bae9a72a6be42d30a327be5c801cb3b2999dd64ae56cdb2ca100484f4f6c01c",
    "signer": "0xD86cBfBb328b9d46953C642d9b155D3BaE67B49b",
    "userId": "336030327"
  }
}