{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "984442370",
    "entityType": "User",
    "nonce": "0x49ad1a8e1a10b2ab7efbc75a871cb0ed9b31fd97e1f2ddecffab03340f3f2453",
    "signature": "0xc4d8ef91cd2bdad0508df52a167219c68c7af2cc699cfa0525fb782ba54f70a13a054f96b71ce75e25c62bc1ea43c46764267832e93311df9f3348ebf20d48a21c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}