{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "942771296",
    "entityType": "User",
    "nonce": "0x5d0a4f2416f302a4ed232cd0b1642daabcd02b5e355c22d9131f9183436804f3",
    "signature": "0xf80312b45665dd9e1a1b630c2ca1edd625efa2e7ad02cfd5ef3c49484c9a339569c14c9a128c8c2920ed7650b29f0d8eb95935e9178c361c453ced9f44f6a7391c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}