{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "830446961",
    "entityType": "User",
    "nonce": "0xe5a6f5431a4522f96b2830b4cd4cec74c1caccf083bb997269c5ec1d25fb2884",
    "signature": "0xd413645a4a83aa1d2c57fa90d4a11885fb85f28be732a9d97e5d6f6f9a25e6870ba4277adb286b29568bdfc43905ce070096a9ae7bdf7e922525dc7279c4f3eb1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}