{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc10e433b99b223345d1da376e0cfa2b68bf55e2e3c7e00b5cca794076c82d6d6",
    "signature": "0x711980b2ef7188ea72868c177b6ce4a0fdc95f15440e693961739f2b78b913b721eaa5a0c485d2fd7ae2bde727cdc616777a2e42c728e857f6f91a7823c2b2301c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}