{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "400171089",
    "entityType": "User",
    "nonce": "0xd218462c8787d99fe1624208c3b052e6d1cb8aca697563f48708374c836b259e",
    "signature": "0xe8a0a3a590cf549185ac1b656fa5fe68684e23f59507dad91a5a25ffbfc55048038dddfa8c9346c164196e1861cc2fd741c5a69a3215ea3aa45fc02444f0f0e91c",
    "signer": "0xc95EFE880463dc9E6fC74760701bBb0A05704C9c",
    "userId": "95927626"
  }
}