{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "760481887",
    "entityType": "User",
    "nonce": "0x86e8b472835a562516f4993d7ae6c7b6eec25e7f1522d37004e25847b64c25b1",
    "signature": "0x7ff05a1de133463e2006ea9195665519e2ecc66e9ac7a58854bb6943e84fb62141de8c31f0d0e704f04670ee939f8120f959a9c3484e7e96fe1810e5df56fcec1b",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}