{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "916206761",
    "entityType": "User",
    "nonce": "0x13e542b745221cd2e8c445da566125fd2614ee7f68ad023195b1d289678503ff",
    "signature": "0x443b06947717344104a6e1719bad823b9307b9c0f87796be5b571a00b59ca3e971c3fd84e204beacdca20e920db1f3cf17877b88fa4c0de9430c76438e8deb421c",
    "signer": "0x4E3828bc809fb5B9deb81fa536cF73Dd5bF4eeB2",
    "userId": "185184169"
  }
}