{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "223331",
    "entityType": "User",
    "nonce": "0x3aac6dbf9ba51f73b2a91e02d287dedc0b0e4cd2371b704b33b948a59581a878",
    "signature": "0x00fd267d2dd29481f82215e1ded6d7867683a5d70dbc33e4dc66e866767d03f77677ae998c845dfddd719b989b844681a2fdae7e9d35fd9b198e6dee4a03509e1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}