{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0x3e0b0a449c3e473e83cada3510294dde73a66fb8158ed792520d641639e57489",
    "signature": "0x6894c4816cd447c21275dcbac1178ed64ff3518698dc688f801e04d0a63e5a3f5724d077fbde09dde836d539cedbcdfd93ca1c625333df020f637fe0097b654a1c",
    "signer": "0x1A523ec8B21411C3F7d611FD345362ad54805b2d",
    "userId": "230518"
  }
}