{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x32004b1984d02da54a616f676edaff50670e8344c3a0cd5ee1ed62145baea7ea",
    "signature": "0x5f369e7798da5f4cc4417f839cf89cefd4d3c360735fbec661ab39b7caf0757c4a9a02fcd2d289e21540fc5aa95158a6230bca26c41e12bf4bebda3531a124621c",
    "signer": "0xf0F491bE628c3A5BF3904d1Ae68bc59234407951",
    "userId": "560417026"
  }
}