{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "342536",
    "entityType": "User",
    "nonce": "0x3c3f4893d63b1761f9690f69d7d2a51ea1834330c3b64e55c50563a25b6ea10e",
    "signature": "0x3536bdb5fd96e3ef801243be86972351b7a0232daa0cbd5a798059381a3821536ef894aea6d86866973ebc914e5694dbb2becd9d8e28824a6417e900b308fce31c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}