{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "535614224",
    "entityType": "User",
    "nonce": "0xc2a291b372ef4826c5f5f2cc48d038b86bb6bf8f2be695ecb6a017f9c3e6f24a",
    "signature": "0x7fd4c9b0987f6d8a45a5493e03e132898901931df3a02c0fffa06bcd18661a5a2149255c6309475aa752ea6029c695a091ecaff9895203f9e10f1a9fc3cc9f271c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}