{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0xcc43703f77c2d195178c1808b002ae0ec795dbd2c2c905d9aa9a76b71a1dd8ac",
    "signature": "0x92b0b41fd0f4d24694f1b4e6d301dcda8d7234fa956afe5e853a2486e852f9383b99d3a66cc77d0838042c4c18a429371a7d26ea1c01f8c1206d9ce0a797d0d41c",
    "signer": "0xB89F4951C5e3a32BD2F716945bD2DE0384cfadd1",
    "userId": "659865636"
  }
}