{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "547969682",
    "entityType": "User",
    "nonce": "0xab2230f778b51fc67d0c5e38fa90bc62f4b1a3a203120a16b93766401f3d574b",
    "signature": "0xf7255e458a677b6842c20e843f45aea07046405fbbde3800fd50092f986c20f572e4e3e55d49f9dd2d02da66bb69b79da673a6238853abbd00736f9ef6ce93621c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}