{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35550",
    "entityType": "User",
    "nonce": "0x8634bf8b88ec39ddc378b44e14f5c6119edcc005080293d7260b3cbbc9f84315",
    "signature": "0xc43a535d2747ea0795c97c3f769b85608a890e31dd44d579a471723335acf0fc708954a1123cdaa2fdecb01566e0c3db6d1ed02961cfb1075190347facf0f60e1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}