{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388633",
    "entityType": "User",
    "nonce": "0xba0bed633ceadb9496ddc55a0b63aa3c937b9671eee8530510ef5b75f18d0237",
    "signature": "0xd82d2f43361b86a2c04b0f9c6daa5c03387055c69565edec30d6ae0fbfc52146108d43824f56bea80df3d35842804b730a6749d5cd222d64d91bb342a91eeca51b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}