{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb57c1c52361804980ad0b5ffcd9e686c5b3a72ae8df44347e36d4567db17cbe6",
    "signature": "0x090f7f90736c199417cda477abff8f0987120a92c6f01b3097a4b7d4a29ca2805100af7045b07b5fde8210fd67ebb5d3bdaa5d767ea4ee1ad66edf7428d9c0a01b",
    "signer": "0xb04b5FCeE18f8c3d4691C5F8a42aC205fC1941eA",
    "userId": "341483447"
  }
}