{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5caa1e7e6a888c25c40a0ef8f9c954728f51bb3f71043f160f73d667180666f5",
    "signature": "0x35bbc7eaae60322de48c4f0ad2a23fb45b64757c6dfa87912917b1472675c5860348b807e8ab433a9277b378395128d6cee9bee679f0aa73c5f8636cd89ad45b1b",
    "signer": "0xC77FC375F0505f98061bDD371Ad3b99D16525d71",
    "userId": "187154748"
  }
}