{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "109348070",
    "entityType": "User",
    "nonce": "0x727dc0b9bc0cb532f8b74eb301ce27b504401b414b61e6df749802356eeeafdd",
    "signature": "0x941bbdb50b0937b5f5fcdfb7183695cf73eb75ec757b865082659657a08b5f7f36da6b09163130ff0ea9fd7ad0b12378aff7d93a382dbb6c4c91a8193a23938c1c",
    "signer": "0x57D64A47c0B6C0789D9565B3D90270Aea276eB11",
    "userId": "199258"
  }
}