{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83464",
    "entityType": "User",
    "nonce": "0xa33d2ab10f8de7c00127e1d10a2755eafb80e0405670980fabac55653f4dcad4",
    "signature": "0xbd6a3a4cdf7ed816b06b75d269a8dfbe202c59c5146a7cdcf3a5e76e117ea1a8623a2a9a40b86be056c07e892a23a47aadd82c6ca2155c2dbe13c25f64c7512b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}