{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77608",
    "entityType": "User",
    "nonce": "0xbfe210dc2edcb5b8c6b0f709b330af7f6dc0413552ceb755201aa2746de4e2b8",
    "signature": "0x2dbd5ca392c56aa5f5891d84d0c23edc39bfd755a497dec6a4a956c87eb92a01777c058038c211f7ab4158f2790bdd1036bd6b31c1fc9006aecf2d2e1bda97c11b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}