{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdbb6d84b6dd8de4c52395f92e8f89e96e185e516c21c8bf0c301454b8c935e3b",
    "signature": "0x20434d628548a42ea8952f0c938207cbcc17b38169dc06ceb5f9add503874ab81a3c84380a9632b687992828f8eaaa3dc39a2008ca34a83e44dad15f9d94ef061b",
    "signer": "0xC465D53C77f0B12718EB8c1E2a7934f2C8aFc611",
    "userId": "212263319"
  }
}