{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x86e100cb3c19950cf5cd790beb6a119ae3f86fa25563f3255eadcf4bb3bd8328",
    "signature": "0x48a8a0b7e347866bd70546e9ef761076b08e3ed1dab3412f2242ab282b2b315761cf753853ad6f74c709a20e66e12680f6004438c88db2fdf06dce3408aaf5c91b",
    "signer": "0xad12A53B30a86D04715B5663c5832Df6E2Cb9710",
    "userId": "980941"
  }
}