{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9704",
    "entityType": "User",
    "nonce": "0x442e0ff1e9a1d5395f68b278af1a796bbcee379d0ff56e306c353a8e29e8570b",
    "signature": "0x54d12dd46600e48295dc4061e0d8e09ce348d8bcf63a6bcbdff907dd6408ac93146432fdb63b7797a01592d605e9d11c6af32207a4e026825156303636200ea81c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}