{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "672",
    "entityType": "User",
    "nonce": "0xc4e046e7080674a6b41e9772d988663a0db824159fab40a3c26befac54c53220",
    "signature": "0x6d755d06ed6cce39f3f9928db0a8cd9d3f25c95a57c31ab3a314634007388d3a21423a0ffaf8f0de7bee3aaac1a686d21c120f5343102bc2be941b9a0e5e1e5d1c",
    "signer": "0xA113178D7B4A27460bFEd03c444eF3322C0Ea65F",
    "userId": "922629289"
  }
}