{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0136cfb13b2c8350c3283da5010e353d19dad5cc780ad76a3b2be22152a0abce",
    "signature": "0x8c8c05f0c3a0eeb3ebcdc2e80e8865bab934d4d2283ff6e55b88cbcf3ce080b83cf6fdb681f67eddf9cd3d57a7b65643155194b254ca46bc8206016b0003e2511b",
    "signer": "0xC6bE407BC5b29e16c84cB9762105455F5d4ec4e0",
    "userId": "288313576"
  }
}