{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1867438",
    "entityType": "User",
    "nonce": "0xef9e479fd8812e98a50b9ef391cc35ebb7fe3f5d926717b65431f3415fdd266b",
    "signature": "0x4ebfce358003e9a0bd87f36a0b845e56c0a0b970362cdfbd6d9352249ebd4a4d252c3280a5e3fd1f7ca1cc0576a339b7c2a76616df3828dead6e0233194d70fc1b",
    "signer": "0xCA34537176e273Efc43776B70B5c70CdD5baE067",
    "userId": "403911835"
  }
}