{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x267f65763816d1490bcc5c45991a40f6204ee4ab6d99f8393c68af61d0f89571",
    "signature": "0xa8b2d846ad3bad19d66e4843de995706c89f93f15ee2f4d5c79a5181923099e54f9a2c6b6fd40146bef779cf57262b296bdf39d388c51ea8308d4c5470b1f6a51c",
    "signer": "0xc49cF32F76ea0016B73F248e8E1B6804386046F3",
    "userId": "772119993"
  }
}