{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "146405",
    "entityType": "User",
    "nonce": "0xb39a8ba0dd6e933bae0b0fe14dca9d196d2a375dfad813fcc8eb13a13a07d3d0",
    "signature": "0x1936c041396118d46f16e5596bc93ec453b3b0a114899dad879c1584b80ec3b9563d1f45929d82b7d7727fa5d65479468225f35fd28f3fcf3386df9182140c8e1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}