{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "171622",
    "entityType": "User",
    "nonce": "0x14004478362a04b7e9b32a7e289dd3047ae3a715fd1c44170e14b23a2a21b565",
    "signature": "0x371edd84ef4b015fec66cd780329ed298ebf6299bd0838808ff3197578c200365b28ca31068dd1e0f6ccdc31c410f8d0d6da8a252ad9f39a17959468036e6bd81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}