{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44344",
    "entityType": "User",
    "nonce": "0xdaabc0455e40773f2a4d75c0d0137831f78707f1e2e45002fef0c471f2e92069",
    "signature": "0xa73824e34ac53092b7d5a78dba07567745f1ab1372a1348ac421e22ffde85059053908c7f4215283933d03a96e9178fddca25e53f77a6676055460998e1025311c",
    "signer": "0xcc8164Efbbe4ed123B8689622b411c154496e66b",
    "userId": "60031"
  }
}