{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156881",
    "entityType": "User",
    "nonce": "0x122add3fd6a959d9075151c7dbd575e5c2d5e507fdb1ce99ec2311ed11036341",
    "signature": "0x51e7d84dc6ec6bf32495f9851e93c3828a8a61259a8f2f561ad1db2268b6cf623a024f10d108004453f98cb973caa8fca70a0709db5f3e616bdbd568594f760a1c",
    "signer": "0xaF260D56498a2d61b204aBc5CAdCbEc98465d11b",
    "userId": "219894195"
  }
}