{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334948",
    "entityType": "User",
    "nonce": "0x80c1a6661a15c68f7ea2d7723189e4e033b1ec3e7f9f3642ecc6a64210d991b5",
    "signature": "0xbceef0e05ad6abcf8e9b21ef36b63c6dc7627df6f220dcede499885514ac74ae037587d322366ea82a99d7844cd49406947c50168b5de26bb893eacf9975a0dd1c",
    "signer": "0x60503113D254c437C2ea4c18d70C8a9e20fD871f",
    "userId": "515269421"
  }
}