{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "838777725",
    "entityType": "User",
    "nonce": "0xff8554c0ffb08f633d465f29389f6c784537df41b1ea5661f2a389fb0eaf9c08",
    "signature": "0x9572323f1669b932e5552d3367039936882ac1900882436c56e0ce5adcd8c5332eaad16294fe2c5d06c14370a7076506613941b6d4bd76d2db703180951841631b",
    "signer": "0x01eB7915E4941D64a8ddf370bE06647ad5F79d4e",
    "userId": "911613164"
  }
}