{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa569abd293804205bcbc0042907f28aea4b8c781e29b37b59f5a23ecab617866",
    "signature": "0x13b5c0cbaf23dfb0042c56b80083552265715590f3f0bc3f79aa434970ad77d35f694b3ac93689632400de17ef956340ca9ddd435cc37330e105b75015da4f811b",
    "signer": "0xc3248519A3a57eF48c6dbf7bD09AFc919eaDAd47",
    "userId": "386348996"
  }
}