{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "683609933",
    "entityType": "User",
    "nonce": "0xb2d33d636e9ff6094d1185c3ef8fd3640d06c0ae6c7612731cf7558a4f749d81",
    "signature": "0x0206cdc7b33ce11f30bb2e70d314249b4570f298d98cdf8dff59a1395b9097ba1e877e54578f6af0dbb6f78f8ad8d8ed9577554b4a81525231c68204a8a466801c",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}