{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "137076",
    "entityType": "User",
    "nonce": "0xbc5a4cd96deeda8b1cdf21db52fc2090bc98e8b4b1d2533801f83daca2da57b1",
    "signature": "0x7804535bb2aa75675c554e09f130f8f1047c6cbc81d04d751bf18837034dd0521f86bb5465ee343ad5dbcbb4cbeec0f4aae2ddd64a809139270878066c916a331c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}