{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "173183551",
    "entityType": "User",
    "nonce": "0x895964382f56b2ea9e78fb78e16e802ff784036206f8d74f9af792058efb9e6d",
    "signature": "0xb6ce299ae2545def6bf896e8145a4785f01997159f72a64e4373254bf09015504ba088f41f20887fc4f1e219aa6c5a2f1a40c2edae5f3e2913c60f770f64d6a81b",
    "signer": "0xeD4de8C7aEdcca7a62a5E17Fb9DF5ee4991E5b73",
    "userId": "209405413"
  }
}