{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xfb162a01ec618668d345764f3d0d150e1f0d942944f2257205928353c5a72b43",
    "signature": "0xd5891ea4d21d19183b85b9d5473bc8f6d97e017fa35a07bb7866938cdf2e014864808b1e084540636f5c327bd63035b69f183b957a49454d96c9c27c252e103d1b",
    "signer": "0x72F4cd98942651fa2A13529F191913349bB4e465",
    "userId": "793250376"
  }
}