{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987917950",
    "entityType": "User",
    "nonce": "0x0afb66c18d9d56fe02862907886541a47b6b0400aeded02b5139c52106f7a7db",
    "signature": "0xb1678c4a21a3c2cd2cd4ac31031e9b801a6015725aebb27437b342fddb113ed42ecdbb0bae27eedc260918fc65b08e2e0b8da84dcc0cbebfb8969640120299a71b",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}