{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xca55c18fc9751e20a604482c97936de0770964e8a8b5d1d8928a6127ee20cd57",
    "signature": "0xdba5ae8a31ff24b6b1667a2e7e4695b31908464604748cf17fe298fb6d35ab4b04b548ce6b8fa0dad30a0dfe923e620a1c59fcb7a7f534c657833ec4d87060731b",
    "signer": "0xFAfB70B50eE7F48187e6388F24dFCC108e9f159F",
    "userId": "815938233"
  }
}