{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "579",
    "entityType": "User",
    "nonce": "0xe9dc1f589899cc73f86a334899f6c97b72102371c6872a2ad0de3ea8528b264d",
    "signature": "0xd43f9473f28f401443c2740baf9801f5377893575ef441c50f4c599ed2dd1bf205f26840a28f13e4edd6d007b7c448f838e589e7a8704ce57c15adca5e840e121c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}