{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0xed9928f6b2c989e67c2fe300c6dc65697dc989469d4d52005c7f89af9ecf2ce3",
    "signature": "0xfe4053e17678826fb17a7b2792512000706120cae090070888572cad8d23449365383642d3ee47dcc48fd8e7ced9d1ea9f07f7b4c0569a840a125066faf573d11b",
    "signer": "0xae6A06941Dc387764CB144aA1A9AA46fccF6236c",
    "userId": "130378018"
  }
}