{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882288",
    "entityType": "User",
    "nonce": "0x11f42445766b62ba2232d39b2bd3691f9ad65702f86fa24022562ec14e263f08",
    "signature": "0x063722db79e7a0cb9b2303fcb29f853ad9c9f5c2877ac64540aa1be6af6d507f7cae46a50fbc8798b8911f0a53e8746f230df1f0b0138f865020b3d6c162d9cc1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}