{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2d2499562ad879f073ba0a6124e5a3d43ff90bade5459a7448fd1b4816f78c81",
    "signature": "0x2dc06343d1989eec01e565a49afddf1e1d0ff4f225d0de77bdf12a3be95382573bc5ea4fbcc34397f2f60dcae75c5731e91e1c6d69b0defac2db69e693a705271b",
    "signer": "0xD15e730dA68b0bF414222983BCA70221BD754d6f",
    "userId": "979174657"
  }
}