{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882319",
    "entityType": "User",
    "nonce": "0x1a5c220a94560c8b4a47305d2e722d83129a09d529fa735b749582470264a826",
    "signature": "0xcbe3562cce32b339a6d9f7897449267929e90f122050d17303ba984ecd97130c00fba2a1ea0a43a5e258bf6b97f16194938a75b1d58ebf08c83e5fb1c179aed41c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}