{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "461438",
    "entityType": "User",
    "nonce": "0x9f9a2c0b78150583dba26e78aa3c212a7058674c3887b7e08dde81f4f8f568c8",
    "signature": "0xbfa7b0cf8f49e0668c5e81ef4dc2261081a96441358e21e51282f0960159dc173d908831f47aebb91bec402423b171081b60f8091ac4880316590cee86e2189a1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}