{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73678",
    "entityType": "User",
    "nonce": "0xfb69ad8bc608c2a128fd496b386887fc83619d9644e865cac26de8027b3bf601",
    "signature": "0xcab8ec7e017a0135027adc03210a80d8db2f390f329462447ffdeed4e2a4bd10294b416571e6fee95b7911c141819d6f686e517fd44825dc7e35c1dca1b5f8e61b",
    "signer": "0xdfF45cF595BF4BB83c5dc28041d854710aA9CF7b",
    "userId": "380429513"
  }
}