{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28155",
    "entityType": "User",
    "nonce": "0x55ff8d179c8b7c77f948860ec77f42b62c9e76dc50d9efad73766bb094de69b9",
    "signature": "0xd52e6705bb008c0456901cff4abce41a530f3f60602f4b02bc47e9feb0f693f27c2d6f399dd5a3aae341ea422d34605146e3cce269431e7911558fbcba34e17b1c",
    "signer": "0xb15d7053c985Edf1d74fFc9893ab67Fdc2B33090",
    "userId": "211545300"
  }
}