{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xf124e48f6dd932c55bd8a933eca9b2e5d03d0e7e1afd490d766cc1e9b23ef14a",
    "signature": "0x59ee886d6e62338ff7520a2f034de30df7d1d9bf3cacb74471c661eef99706455a4b938895ce0693f76a7ea9cff9d5601d29ac9cf92a28f72b0580e167772e301b",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}