{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "125233",
    "entityType": "User",
    "nonce": "0x28cc34262b4560396403cb5f8d9ee823c1ccceeb9e14f8d12ca244b900d71361",
    "signature": "0x60b173da2d2b99eb178c6ca2632b9f3cd22addb1a58be9a6e9a98fc7737d679e7966913ad4871965a11c3142e4e6373eea81ba7d478b66d4d6662a462171567c1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}