{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "199159",
    "entityType": "User",
    "nonce": "0x720b4d0920c5eda702755d2bb72b0759993b72600e55919fabacc95412e84cf5",
    "signature": "0xa586cedaa9bf918195c5f3557d7c906d9f520ab6ee0ce097e9ab5b811e3a3b9642f83a68a0583e90c74dfd8ce406bf34525e8c6775ea284d9a56b48aabd88f301b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}