{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8983a8e6cba4b5ef36283ab3f414d1bc34162d4ecf4be8acb45d1947eef87c32",
    "signature": "0xeed43358a27e3ba1544b110e2c71cfd217de994b3d540793416e75f94be979ea3b9efe40feffcc25aaedb6116d409442af12582f285d00e5d3cc96a4575f55f51c",
    "signer": "0xEAf7d5841a3D23F208b8ae2d671c89117a4b3cfB",
    "userId": "125943454"
  }
}