{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146791",
    "entityType": "User",
    "nonce": "0x1baf141ca5d78ce3e24fd1ca8e80f3185ed39d2475b80751e8f258e732ed19a2",
    "signature": "0x15a5995b40fd3245c207305b4d93cf2b627f9fc817c13bd402474028768e79ff025d5a507bfcf3951433652cae5630b4d7dafc6ed7f2ea6f1fdbe48cbacb96601b",
    "signer": "0x4089d1751487aA665C895419F2578a6Cf33BE481",
    "userId": "728155533"
  }
}