{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "995293503",
    "entityType": "User",
    "nonce": "0x9eb0e7d2cfd0259ecac28e9f45292e9b043b45a22016901e6a25d81b8eac59ff",
    "signature": "0xf44a2f9cc624d3b28c1f0792d1bf605aba8591b1b69107b0a940200966d28a1c1b8049e020e9276cef234db26a2ad40e41510feea9f07e5593518684684817711b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}