{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90338",
    "entityType": "User",
    "nonce": "0x852993419cb60f04ca3b9758c213579886874821b58dfbe62c11160b46658c45",
    "signature": "0xffdf85a0affdc7d4f0b6df3818b1fe593b4b247b8cebf02eb76df7f5e1639f3d5d56585b0c6dfdfbcbff20a8ef29211f4ed0fa6c2e939b9b42e0a7c25b546b3e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}