{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x15a8df26ed2c6b0f27e2b053945b4122032e2aedb7c3c5598a5cf2e38898a4e5",
    "signature": "0xc716ba64e62bd76b6849607afe534faf7f8e185d697d3837c28fcd86d2b9f09026c9b4865ab45ec12cec63283f078c826527ccc3ab1b19dd1ab3514613bba62c1c",
    "signer": "0xc5d6bCdcb6fd9Fe855a783f206E42faff15Af984",
    "userId": "134195905"
  }
}