{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x4c54a68f1dfc152c55539a8a07fc09ecfdf6d2face06d617f523d57b97ec5e70",
    "signature": "0x162804d05f26225b9f858d2e1803dd705d183a66a3c8fe2818ca3c2953cdccf144e711aa1392d1ce9d7220cd93a3e3e0e5734e12f5309d12a1af34f724ee85cc1c",
    "signer": "0x87db7DB210Bc673A8cd93811B666e7527f0Cc154",
    "userId": "711686853"
  }
}