{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0x94c345dcbee66d563485579b66294cf83fe20b6a15a55f7a9598743f66a3adca",
    "signature": "0xbaa1dd0db32e2a9de39673a6386190de98dac37f8739114d84104df54c0f04d52d9b1b081a8fcb39798106ce281bd926ffd1d1f227446f4a5e72e16e66eba78b1c",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}