{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc44e8671169f32e4426c3343197081c8a03a13936eb7b1882ec49f0cd27c4273",
    "signature": "0x61aa6e024f5229ce4aa48feb82a0832908b05ecbcecac6ce3bc811087d0cf64f36eb68e4ccec2a6e4ed0315bdc24dd700ed7ec3e023edaf91e429a00f316e6951b",
    "signer": "0x7662cb86A5Ab2f46DF58d87368873d0f07FbC1Ca",
    "userId": "875856435"
  }
}