{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107573",
    "entityType": "User",
    "nonce": "0x5dfa5e0a858fe178e6f87df19db417443043868bac3de5d5a22fa77de3f012f0",
    "signature": "0x26e38249efa829ea2fe4a723530402eb010527eb31503d592360013211eec0e25b1d2e4c8ed809787b8bd3c96fc2e23cd072f95d22b1c65e35bf808dff372d021b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}