{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54134",
    "entityType": "User",
    "nonce": "0x54983db248f88cf39e7571dcf7ef5405e301c1f37cef55c30dd301d85e6222ef",
    "signature": "0x675a2e0c81e347f1e09057104e17da674f63cfff2fa65115b6328c27c9d58574383bf66e6f0945b583af0bbd39b56eb988c5ae9990e43a112d49f815f3143b051c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}