{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x986cf5c1ce5643ff24905b83a96dec222fbf147ba4370314b504f0573d19e6ac",
    "signature": "0x42f4bd8e47ec1a8d3ecbe69c4a0fb9b92e095ccdf677094f0b6373376d51bc9c6131ea29924504fc1ae05e329cabde9cad6183a5fddde501365e60946da150831c",
    "signer": "0x7A4D84dE782cBCF49AB1f615578A356b09d6e679",
    "userId": "62949483"
  }
}