{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "67549",
    "entityType": "User",
    "nonce": "0xd6b9f2139e91d42bf16960b98b5a29d60d2821653c7d095e00406d6e37d883ea",
    "signature": "0x703cb49a5a422f0a0582dad77d24fe9a2abf20278e540bca1b2c6cf87e1b2851323ae7726870427eff67a960f21a0e10fd60134fe40fa7e76aae88a7844618181c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}