{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64159186",
    "entityType": "User",
    "nonce": "0xd67901aecaeb31c7a928d80fbde296044bc2eb7abf76d517ef255c0d8c661f89",
    "signature": "0x5fdaadfb077aae22b0b4685080bbce067c9896107bc6796d6b8171f79f6b29134695b1eaff0a6f6ee4331abf2ff208ccad6dfa29a7aee78a5fbcb49f798fa4781b",
    "signer": "0x14FF2Ce3bf23AEeC9C140996251F6f85D8e99431",
    "userId": "53273933"
  }
}