{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "751451",
    "entityType": "User",
    "nonce": "0x02df8ea2084184e9ea62bc035858d474b952fa3167633a1c92f2767f4655a960",
    "signature": "0x96d6ce97aad013e33bf5d6b584068723f65125146221884fa6aeef4610e4274041da0c505e7d4f80401ecb0f0975e9e05c223327e11bdf077d61ea93b09c693c1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}