{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1696404",
    "entityType": "User",
    "nonce": "0xa6d65b9cdd938c6136f1399b2746cf74486620d85b243eb73e6affdfca11afbe",
    "signature": "0x40854c37ca07b3c749a80906c1d2618e31d23e6d8a5f81110399f47ece64592177b5a49533ad4b40379e68ca15476d2810ad0c1596e471759087ea0b674955c61b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}