{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "703513220",
    "entityType": "User",
    "nonce": "0x2026c1f813df90739825fc769e61f8f3ed11a2b5bedb5c11baf063315595ec67",
    "signature": "0x177d12596ff41a52f05033d7ced2f2b598adc49b307d8863a300e06062acfc0632aec733a13c547601c0ff5916a4a561efcb0f39ffa7de3c7719535348c4261d1c",
    "signer": "0x34Cea527C1dc0575a5B686515aad0Bf8F3b5f97E",
    "userId": "13589021"
  }
}