{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62723",
    "entityType": "User",
    "nonce": "0x8fe7dbb1b6623de0f56506ff62ae5dde8d6173f9ea34639b82cd576ac579ad1a",
    "signature": "0xf2c3bf40f8a6fc2fdfe3d04e4e5a8938edeadcc140a2f550e05a03aedad34c9f51dae6a91953eb675f2066f56555bfa52b9b2029bd6aa5392facf6425455572c1c",
    "signer": "0x4cFd9635b74edd6514FBb781B9C920be24A36AfA",
    "userId": "376830101"
  }
}