{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd15061748335e2faa7ed0efaaa04122be4be714f063d3cf8063bee995ddf64be",
    "signature": "0xa4b1e66ff44e8febcd83e344c5deef0b3d4629d9c72073e9d71b6241a78ea41e5149bb8681a895497ef0e3b2378ab94307813a2bbd68ac5bb6aa763a21d62ee51b",
    "signer": "0x9B48044FBE000A8aE0be20753cF413B87aB1063F",
    "userId": "466597581"
  }
}