{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0xae99f04584d57f5b9b83196074268a1fe9885578ffce070b54631915cf5cfcf5",
    "signature": "0xa260134fe2f0e6446b353b1df221ef30973afb77d74b4e11ba82e2e40eee45d7599a0f01e34eb4dd8940910181b5bb7eedbf7e02b2c3cff25d78fafb1a9598eb1c",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}