{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "594615071",
    "entityType": "User",
    "nonce": "0xde06c97fa97c09b9fe53a4218629303e3cf9ebbbcb292480a6fd3634f8714003",
    "signature": "0x1312b97f00e978dbcee4075da1ce080f4147014366571be9431f032a31bc76cb1b1c93e1892ff01042d21853364acd32291f0dda3e31497af268a0d2a9eedff01c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}