{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "237191",
    "entityType": "User",
    "nonce": "0x1e7c2167e457de25d4e70a70938809d820c21dae95c25ac58b2791def868bb2b",
    "signature": "0x0c2479e4607898d26f6b71bf7e05fc3c43122db34b71ec895161f262a3720c5159ac44f7dec541369a666da4893a1030e42ae3de1eec2bb0becb7516c58388681c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}