{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "486490947",
    "entityType": "User",
    "nonce": "0x9ef55c938546341e56b87de7071494522a84d1563e1118029a6b2a4b8fd98816",
    "signature": "0xc1dcb8d83f3bd47095ce234e8308a1b8038d0ec7eaeb5cbc024215e769ae84d547fbd375b52069ff404f8f02fbcc4eaf59f21a5dbe504fb7ffd9233b68f6d0111b",
    "signer": "0xd32819732210Ea4B81f5Ee202a2bcb7704aFEaA1",
    "userId": "714016562"
  }
}