{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0xcf18f24bd47be12a46a891fe1dc7f797bb356253048aab6a016a34ddfcc6f8bb",
    "signature": "0x3e0bec7850624b1820cbf975dd059af674152bbaee504b903db17b4dd99cf994632f91c9ee7078d83c78ab869d49e83ce11444a879828ed8e088c1bbc461df5a1b",
    "signer": "0x52Cb4b468190D878a90e6d678064532b2405fBC6",
    "userId": "184931764"
  }
}