{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "868248368",
    "entityType": "User",
    "nonce": "0x6794940d03a4967af096cb5d92022b5908c868111a89b195e2c017ce19076296",
    "signature": "0x135758b4c05575d2a4af9c4442ede3a656bcc1167cdea4a2b3076e335b79af846550a08c24ded66a76a91051dd63625489723ed6b84c02baf770cafad42ed4cc1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}