{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1fd2a5867e289de484020bc20349b1ae10502a7ecccf2647f9d9b1e2cd70ff77",
    "signature": "0x86e9ca09389a9da889db8d1651a12b7e322f36a6ce6c6a092fab3bce6bf86aa86c506dbb53b54652250ccfebc019c34c2149c7de9e5abe3972c8cf0c69d756a31b",
    "signer": "0x045f3ff2A6ac0332f4f6288E35B9d3d1Ae169354",
    "userId": "704529763"
  }
}