{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3d70087147078d1e6010388559487be17ea3e3b890556c6724319672d89dc1f9",
    "signature": "0x9982eb1f3b0175fb196324bc63c77cedbae64fadd2573d09c9c634c1d191a6c556845536fad0cf8f287f18a057d8590ea9524ad4988c50679d9385af40febf031c",
    "signer": "0x5d63ad28f1a5D0686355e2D305c9b88597D5E18C",
    "userId": "834732195"
  }
}