{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1661fe0048a0a25e245e14966c8a8cb9f5aa3e8c978fe067628c44f9b43daf5a",
    "signature": "0x32a3068515180341e259e2601748ac7e379f9c7daff16bcf4e9a7bcd0c22bcbb2261db7f0d3973b5287e0a99c052d0d352075708caabd3b3f440b218ceaf9e741b",
    "signer": "0xe3eC74910EEa8577CA6cFb4cA388276FAfC09834",
    "userId": "167845231"
  }
}