{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x73f25ec226bc29d5ae5c7dd74f410dfe5f79fdbcc015f9837aeea6c51f2b31b4",
    "signature": "0x6da16e4df4155f9d7a2bd5027e555b0b2e3157eac3925794c3d05038afab55e4016d93d38e5b88521f5f655b5e7de1f929efa9be38893bed368dfd5fb21ddf751b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}