{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1880680",
    "entityType": "User",
    "nonce": "0x086ab3dbea189e8648ab658ebe78400cf59a0c4bcb03fe4b7cddf47650714ceb",
    "signature": "0x06e91e18216472179502ebfdd58ca68c0a354d53b7adea3cdd642552f8c1294211f89d72f7fe39f0298d95f067db53237842ae1063cba1526403cf20bc2e72aa1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}