{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "447853505",
    "entityType": "User",
    "nonce": "0x85263babeeb4179a6819e40a2db0e27cfe4b4ca868c70f9a4836e3712835d6f9",
    "signature": "0x696f234300425017069d3ea2bf67f0c62832a06eb86859381358563450ac4c47023cacc3e02ce98d848953a0a093f703323c5f47e67bf6477474ab1f502968001b",
    "signer": "0x25e1dfee0D681BE7Cc3edbBa57650eeadD7B075F",
    "userId": "486382568"
  }
}