{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15014",
    "entityType": "User",
    "nonce": "0xe1781fd209f8a79db2eb46382b055dd6efcee14e28010a3945c606ec3d32fb1d",
    "signature": "0x0c9b304c956d9e6875ff90897454273fe61b922e4f6e43872553767db9765636247cb0ad12f33ea51abe90504a7900ea135071b840077379b85fe5380de2e5be1c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}