{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xcfab684dbd918fba8710864970ec275e0e52752c281a6f342bbbeeef8d535cfc",
    "signature": "0x84ae3c433f5a62777a440dbb16766d3500fd4b3a1c59b97e91f146a1f8fdec98072b5ed57f37654561d8ccb0e697c049e896ad8df7b3ee5750f823473f907eb61c",
    "signer": "0xF0CaA5581Af6ee80150b5aA4643d1069EC176dB6",
    "userId": "834540087"
  }
}