{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4530",
    "entityType": "User",
    "nonce": "0x0388ea3d0438127a4c4a7cc456a31d5b39daf7731092cc3689466c0449e4194b",
    "signature": "0xa93c87f9a09dcc14a5f220a44e61b847a149227ebc0e1618b9662c9bb81c6fa036ffd54218253897eb8a2c319643cd8294a8391958f945bdfdecf9d7217d090b1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}