{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77551267",
    "entityType": "User",
    "nonce": "0x73e41b4b5c7cfca0f7f19b1895877b55186cd9cab40df46d6a303881c2f15a69",
    "signature": "0xd727785d4db29b5497badedef705cde10eb4833ab1ba6ca33a53cbe59ba54e2e6e2a38378f5e923dfeabd51275ead50bb81e802ff541a321439770f7a0b8f0221b",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}