{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1777978",
    "entityType": "User",
    "nonce": "0x50817273422c79e4f4c7daae8a2e9a38b6263faec5fad368929661a74daa10b4",
    "signature": "0x95acd834f8e6321e70e93531f62206d61623039ec894322c279db470e2804fbf429821c233267a6fc28307c37102b28a8cded2ea9e0eb20aef688c7f760545571b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}