{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x44f1b11daf9160653b4c69920f15df7e2084f45640d4c2640e97157de3c0b231",
    "signature": "0x6436af44a0abfe4ca405ec3a8eb992d2fe370da0f92d99fab9310acb55a7d38839eb5d7697c612a4528497853330c56b4469827cd30f0a41b2f3bea1059588731b",
    "signer": "0x51eb83B482b61e1b0E5443cD8475874Ba64aef1F",
    "userId": "857012202"
  }
}