{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "964257878",
    "entityType": "User",
    "nonce": "0xee58cbfbb7d9e5414d5f975bca1b64ff0ef02f0bff719b2703911e25fcdaabf5",
    "signature": "0x66f6974b55593b74bdcdbe832cc156874db0169fed1a7e6dc68b7906d7f987886b2fa7a0e3a07c82d5bbd750d4b1610cd1824785222d51eef9b91b644377e8941b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}