{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "499031899",
    "entityType": "User",
    "nonce": "0x88d1783472fa6fb391994a746490892b1f4c4fb7fadd53581443e04b184892f7",
    "signature": "0x425dd812d7350f81c2ba7c3537fc59e81aa6a2eac4dba1d99b492997b7cc74095186ba5d77ed8fd37436b3619523e1207c83a2f19f00c010ce1918d9ee4205a11c",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}