{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0xa93a806d8cb4bfe71b73abc1a33abb46201fc672d55539f6e2f55ec1945a7563",
    "signature": "0x83f9408896b5fc022c13483c40747b4c79cd25d35b9c0b8ce5dd0dbe37d6f0c55075bb3de7b0955bca03148d278bf8df5b95f97acebc4b4b1ed83bd708155d631c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}