{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882627",
    "entityType": "User",
    "nonce": "0x255aa53efd35506319d3426517697e5f3358144f07fa14d259f11037f41731bc",
    "signature": "0xc2f1983edeb1638b285f46c52f438b1c7abf8c7fef1e8a81c66788873de35c3f128132e7381281f06b70c1644ea63eb8a8b3e6a7f9a83929ead45e5352ddc6711c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}