{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335904",
    "entityType": "User",
    "nonce": "0x0c6350f3ff79c502204ee5c91f3d77d10ddd0a3c805ffb1612b6f129f37f3be8",
    "signature": "0x7f8f9db32da760b839c5837d9dfbf193698fd2100c94411131fd5c6a086cb60306c828316bb01d073bc186e8b7187cb6952e18077a91615736af7d43b771f0cb1b",
    "signer": "0xE0EaB915C3153F4a2DF5C6e7b8D58dAc829Fbf2f",
    "userId": "774741623"
  }
}