{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2364",
    "entityType": "User",
    "nonce": "0x8346c588d80c5633f4010b9e8e906edd7e0018983c5e9f1f6e99fecade09b20b",
    "signature": "0x136afa2bd37e2da205c80d3e134bd5594f5ced02d2c6c1d21e1012681c433d5b1dac41631f628f3d1005883a8ca244ea5378bc82872678bda6667e24662d8d6a1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}