{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x802c0a07868c5bf258e60ecfba47f7f6c030df37108ea3239ff30c085fa1a4f5",
    "signature": "0x4cda7e942b37d253e1447c681a8b75207b34140676019ac339a31539b603c8d87a5f82354f51771d4805c9cfe84d7c9aaf5255a35440efdd7d3eedb830b78bec1c",
    "signer": "0x8ca9ABbF13a0bb00239826D1bbFBbc55f6B39F19",
    "userId": "98178631"
  }
}