{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa556689c7cfcc442b2ee230df198a6953ac95cce37fc54bf2032253712e0b34b",
    "signature": "0x9945bebe11181ca42bffc6ba7f91fb2e31168435fab3055a37c0b381420d1d294a29496467a95aac03e6882fb3e414b1ce3a95e74ab673fab9725fa464422f981b",
    "signer": "0x453b81E8d5891F9B543FF079D4A5DFE20ef61F1c",
    "userId": "740967857"
  }
}