{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "97457",
    "entityType": "User",
    "nonce": "0x37f8888678d49520b336ebf0a25513510dcd0448cc9f5d0a6d7a8555f253f971",
    "signature": "0x5dbbd7c3c775eba7783541443ce317afb27ea8b9430fdeeeb686205dcd807518617f57a2d1d9690dcad9e555b7a600ee0ded91335acbc4bf7616c7b9a70b39271b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}