{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x77ac293f8e873a17af6c50502edaaea88895c0ca48dfb39b8b2ccb6bd2cb4f4b",
    "signature": "0x844e9a8c6758df22137d46babcf1dcb66e77e23f90a416b1e262b4ae38cd66a656a3e30b2e56ecb111b3ca198fcae2e69d149900d8a1fc11a4bc64a595442b9e1b",
    "signer": "0xb20fBf039E5Ae642AAE74e16aeDCeF19aC40da60",
    "userId": "911025392"
  }
}