{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "328108",
    "entityType": "User",
    "nonce": "0xab3f1f46951e4250b0b298d9590fd7fb8713d490dd00e452ea9d922d4c64e633",
    "signature": "0x3d776a9cd03a16d517464fa8c8330b08c9efb9141d431584162400428a2bd2dc3e631c1f4507139628d2710b24cfdf4acccf0df9feb4d670ca64b7750a1839931b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}