{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "854614078",
    "entityType": "User",
    "nonce": "0xdc5893e3f3bb8fa437a3f979f00271f384758444625363e4a4af0f0572c6e548",
    "signature": "0xe15b1906171c72a64d0ea4d936697ce1ed4c3e9aa7a51c505e1324e688cfcd625e0966612873060af068a89d3e1d77f6c793535cea7c51048fc5cb365c6072211c",
    "signer": "0x48997477d821e30d3Fa835d1Ee7809B3253Cb100",
    "userId": "75085"
  }
}