{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "277314120",
    "entityType": "User",
    "nonce": "0x0f37af38814f111286309d5e5143db6cd395431b4f4b6c4d38b61b06394e8869",
    "signature": "0x6491e1d9b02414b4e5f3914bfec20f6d2637080254873eb611be101b02bee7922a0fdc7b0cc8fc6c7a81cc2533e11e7004424458abcee32fa7695d8a048b22a11c",
    "signer": "0xDDCce44d487ED1f7297d836241df35AAB6D867b0",
    "userId": "22610281"
  }
}