{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "99401894",
    "entityType": "User",
    "nonce": "0x12a4bd438bf2d9c645d66dd43bda5ca22f57be33a06627744ef4f388f677b2c6",
    "signature": "0x1481be06de32bcf8b64ea5e306bf7c9a01bcb2521cc8a4cb66da07099c5d732875d4b43f957dfdbc41bddc852a86dc645ed95327cb2e08d65033c3ca04dcd1981c",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}