{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381932",
    "entityType": "User",
    "nonce": "0x4c75ad055aacfc853ca972d2b76986a31081c52fe284fc435d5f0f998f3167e9",
    "signature": "0x0102269282c69e82ab2292fdeae446771226e0afc7314e07db250a14757d80f716446ec8967ee16a5d84fc3671c4d5e4643da2023f72ab0f5a0db52b2731baf21b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}