{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xece07c43622f0e0233b6080f562c42640f379e3f42151da44bfe8a39d2cc909b",
    "signature": "0x57f0acffafa7d858df4763a2f19352d385843a1471213310e2e638b2141c88486c5aa67105a2c64650a40ddc795a92ef5c7ca49c876702c5fe3de85274db68aa1b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}