{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "833590211",
    "entityType": "User",
    "nonce": "0x60cdecf1d5115ddc2dc1ee2d294b789301fe7158fa5ca5f0e0b79a9c9bc1c46b",
    "signature": "0x620d43937762930df16da18d6f10753aa37d57843097fe0c70a6a91bb2cddf5259d13ddc8201b0d73949417f60b1db1aa6ab3d2e4ac8186481bcd349c48000561b",
    "signer": "0xb90dea25446900B58b936FB95262D7557e6115B7",
    "userId": "559908939"
  }
}