{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x4a3380238d9f1f70192d2394f9fa41b8d73bb1bf6e6295ccebfa780d5ded3bad",
    "signature": "0xed10c75079786419f9124700201e7432aeb8744b406b23385b64cc6882b78d2a524a51b736758e4fc500957b6a2941708fee7e1001fbcdf67aa805351a4f5c701b",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}