{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8eae1a1929062d674a9671d33590b5200ef40b19bf5dbd45275f7d3e0ebea080",
    "signature": "0x17c46b6727eeec2553c1cae1afdd3ae2a96a4d14c411040d995ad040723ee5813b98eabe6a80884ff989e1372aa86ce735cb3e98e2b6b733925c327f543dd9371b",
    "signer": "0xaE8f01E1365fF40Fc050967a35634F857650c83f",
    "userId": "814483459"
  }
}